1057994636 has 12 divisors (see below), whose sum is σ = 1851737328. Its totient is φ = 528926832.

The previous prime is 1057994633. The next prime is 1057994647. The reversal of 1057994636 is 6364997501.

It is a super-2 number, since 2×1057994636² = 2238705299609544992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057994633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31145 + ... + 55551.

It is an arithmetic number, because the mean of its divisors is an integer number (154311444).

Almost surely, 2^1057994636 is an apocalyptic number.

It is an amenable number.

1057994636 is a deficient number, since it is larger than the sum of its proper divisors (793742692).

1057994636 is a wasteful number, since it uses less digits than its factorization.

1057994636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35248 (or 35246 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 1057994636 is about 32526.8294796772. The cubic root of 1057994636 is about 1018.9694307161.

The spelling of 1057994636 in words is "one billion, fifty-seven million, nine hundred ninety-four thousand, six hundred thirty-six".