1052001240 has 128 divisors (see below), whose sum is σ = 3233260800. Its totient is φ = 273728000.

The previous prime is 1052001221. The next prime is 1052001241. The reversal of 1052001240 is 421002501.

It is a super-2 number, since 2×1052001240² = 2213413217923075200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052001241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1596031 + ... + 1596689.

It is an arithmetic number, because the mean of its divisors is an integer number (25259850).

Almost surely, 2^1052001240 is an apocalyptic number.

1052001240 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 1052001240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1616630400).

1052001240 is an abundant number, since it is smaller than the sum of its proper divisors (2181259560).

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

1052001240 is a wasteful number, since it uses less digits than its factorization.

1052001240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1052001240 is about 32434.5685958670. The cubic root of 1052001240 is about 1017.0416781319.

Adding to 1052001240 its reverse (421002501), we get a palindrome (1473003741).

The spelling of 1052001240 in words is "one billion, fifty-two million, one thousand, two hundred forty".