1052405140 has 48 divisors (see below), whose sum is σ = 2253263040. Its totient is φ = 412807680.

The previous prime is 1052405129. The next prime is 1052405141. The reversal of 1052405140 is 415042501.

It is a super-2 number, since 2×1052405140² = 2215113157396839200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052405141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228460 + ... + 233020.

It is an arithmetic number, because the mean of its divisors is an integer number (46942980).

Almost surely, 2^1052405140 is an apocalyptic number.

1052405140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1052405140 is an abundant number, since it is smaller than the sum of its proper divisors (1200857900).

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

1052405140 is a wasteful number, since it uses less digits than its factorization.

1052405140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4792 (or 4790 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1052405140 is about 32440.7943799162. The cubic root of 1052405140 is about 1017.1718207458.

Adding to 1052405140 its reverse (415042501), we get a palindrome (1467447641).

The spelling of 1052405140 in words is "one billion, fifty-two million, four hundred five thousand, one hundred forty".