1051257432 has 16 divisors (see below), whose sum is σ = 2628143640. Its totient is φ = 350419136.

The previous prime is 1051257401. The next prime is 1051257433. The reversal of 1051257432 is 2347521501.

It is a super-2 number, since 2×1051257432² = 2210284376670469248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051257432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051257433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21901173 + ... + 21901220.

Almost surely, 2^1051257432 is an apocalyptic number.

1051257432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1051257432 is an abundant number, since it is smaller than the sum of its proper divisors (1576886208).

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

1051257432 is a wasteful number, since it uses less digits than its factorization.

1051257432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43802402 (or 43802398 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 1051257432 is about 32423.1002835941. The cubic root of 1051257432 is about 1016.8019248990.

Adding to 1051257432 its reverse (2347521501), we get a palindrome (3398778933).

The spelling of 1051257432 in words is "one billion, fifty-one million, two hundred fifty-seven thousand, four hundred thirty-two".