1057409232 has 40 divisors (see below), whose sum is σ = 2979972960. Its totient is φ = 320426880.

The previous prime is 1057409219. The next prime is 1057409251. The reversal of 1057409232 is 2329047501.

It is a super-2 number, since 2×1057409232² = 2236228567837659648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 1057409193 and 1057409202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000807 + ... + 1001862.

It is an arithmetic number, because the mean of its divisors is an integer number (74499324).

Almost surely, 2^1057409232 is an apocalyptic number.

1057409232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1057409232 is an abundant number, since it is smaller than the sum of its proper divisors (1922563728).

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

1057409232 is a wasteful number, since it uses less digits than its factorization.

1057409232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002691 (or 2002685 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1057409232 is about 32517.8294478583. The cubic root of 1057409232 is about 1018.7814591161.

The spelling of 1057409232 in words is "one billion, fifty-seven million, four hundred nine thousand, two hundred thirty-two".