1957642604 has 12 divisors (see below), whose sum is σ = 3438902544. Its totient is φ = 975099024.

The previous prime is 1957642573. The next prime is 1957642607. The reversal of 1957642604 is 4062467591.

It is not an unprimeable number, because it can be changed into a prime (1957642607) 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, 929387 + ... + 931490.

It is an arithmetic number, because the mean of its divisors is an integer number (286575212).

Almost surely, 2^1957642604 is an apocalyptic number.

It is an amenable number.

1957642604 is a deficient number, since it is larger than the sum of its proper divisors (1481259940).

1957642604 is a wasteful number, since it uses less digits than its factorization.

1957642604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861144 (or 1861142 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 1957642604 is about 44245.2551580393. The cubic root of 1957642604 is about 1250.9630134136.

The spelling of 1957642604 in words is "one billion, nine hundred fifty-seven million, six hundred forty-two thousand, six hundred four".