3157960 has 32 divisors (see below), whose sum is σ = 7653240. Its totient is φ = 1165824.

The previous prime is 3157949. The next prime is 3157961. The reversal of 3157960 is 697513.

It can be written as a sum of positive squares in 4 ways, for example, as 2630884 + 527076 = 1622^2 + 726^2 .

It is a super-2 number, since 2×3157960² = 19945422723200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3157961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517 + ... + 3556.

Almost surely, 2^3157960 is an apocalyptic number.

It is an amenable number.

3157960 is an abundant number, since it is smaller than the sum of its proper divisors (4495280).

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

3157960 is a wasteful number, since it uses less digits than its factorization.

3157960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6097 (or 6093 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 3157960 is about 1777.0649959976. The cubic root of 3157960 is about 146.7130936584.

The spelling of 3157960 in words is "three million, one hundred fifty-seven thousand, nine hundred sixty".