1057480640 has 28 divisors (see below), whose sum is σ = 2518126536. Its totient is φ = 422992128.

The previous prime is 1057480583. The next prime is 1057480643. The reversal of 1057480640 is 460847501.

It is a super-2 number, since 2×1057480640² = 2236530607949619200, 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 1057480640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057480643) 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, 1651994 + ... + 1652633.

Almost surely, 2^1057480640 is an apocalyptic number.

1057480640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057480640 is an abundant number, since it is smaller than the sum of its proper divisors (1460645896).

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

1057480640 is an equidigital number, since it uses as much as digits as its factorization.

1057480640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304644 (or 3304634 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 1057480640 is about 32518.9274115860. The cubic root of 1057480640 is about 1018.8043917413.

The spelling of 1057480640 in words is "one billion, fifty-seven million, four hundred eighty thousand, six hundred forty".