1957043964 has 36 divisors (see below), whose sum is σ = 4773624296. Its totient is φ = 623983008.

The previous prime is 1957043911. The next prime is 1957043971. The reversal of 1957043964 is 4693407591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147799 + ... + 160494.

Almost surely, 2^1957043964 is an apocalyptic number.

It is an amenable number.

1957043964 is an abundant number, since it is smaller than the sum of its proper divisors (2816580332).

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

1957043964 is a wasteful number, since it uses less digits than its factorization.

1957043964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308346 (or 308321 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 1957043964 is about 44238.4896215954. The cubic root of 1957043964 is about 1250.8354870980.

The spelling of 1957043964 in words is "one billion, nine hundred fifty-seven million, forty-three thousand, nine hundred sixty-four".