3157263438 has 32 divisors (see below), whose sum is σ = 7218650880. Its totient is φ = 901819200.

The previous prime is 3157263427. The next prime is 3157263463. The reversal of 3157263438 is 8343627513.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3157263438.

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, 178498 + ... + 195386.

It is an arithmetic number, because the mean of its divisors is an integer number (225582840).

Almost surely, 2^3157263438 is an apocalyptic number.

3157263438 is an abundant number, since it is smaller than the sum of its proper divisors (4061387442).

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

3157263438 is a wasteful number, since it uses less digits than its factorization.

3157263438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21352.

The product of its digits is 362880, while the sum is 42.

The square root of 3157263438 is about 56189.5313915324. The cubic root of 3157263438 is about 1467.0230586281.

The spelling of 3157263438 in words is "three billion, one hundred fifty-seven million, two hundred sixty-three thousand, four hundred thirty-eight".