1057512630 has 32 divisors (see below), whose sum is σ = 2648381184. Its totient is φ = 269742176.

The previous prime is 1057512623. The next prime is 1057512661. The reversal of 1057512630 is 362157501.

It is a super-2 number, since 2×1057512630² = 2236665925219033800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765624 + ... + 767003.

It is an arithmetic number, because the mean of its divisors is an integer number (82761912).

Almost surely, 2^1057512630 is an apocalyptic number.

1057512630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057512630 is an abundant number, since it is smaller than the sum of its proper divisors (1590868554).

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

1057512630 is a wasteful number, since it uses less digits than its factorization.

1057512630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532660.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 1057512630 is about 32519.4192752577. The cubic root of 1057512630 is about 1018.8146649708.

The spelling of 1057512630 in words is "one billion, fifty-seven million, five hundred twelve thousand, six hundred thirty".