1051140240 has 240 divisors, whose sum is σ = 3696638400. Its totient is φ = 277572096.

The previous prime is 1051140239. The next prime is 1051140241. The reversal of 1051140240 is 420411501.

It is an interprime number because it is at equal distance from previous prime (1051140239) and next prime (1051140241).

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×1051140240² = 2209791608294515200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1051140241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2701966 + ... + 2702354.

It is an arithmetic number, because the mean of its divisors is an integer number (15402660).

Almost surely, 2^1051140240 is an apocalyptic number.

1051140240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1051140240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1848319200).

1051140240 is an abundant number, since it is smaller than the sum of its proper divisors (2645498160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051140240 is a wasteful number, since it uses less digits than its factorization.

1051140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1051140240 is about 32421.2930032101. The cubic root of 1051140240 is about 1016.7641398378.

Adding to 1051140240 its reverse (420411501), we get a palindrome (1471551741).

The spelling of 1051140240 in words is "one billion, fifty-one million, one hundred forty thousand, two hundred forty".