3157340640 has 192 divisors, whose sum is σ = 10989167616. Its totient is φ = 757932032.

The previous prime is 3157340633. The next prime is 3157340653. The reversal of 3157340640 is 460437513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179269 + ... + 196091.

It is an arithmetic number, because the mean of its divisors is an integer number (57235248).

Almost surely, 2^3157340640 is an apocalyptic number.

3157340640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3157340640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5494583808).

3157340640 is an abundant number, since it is smaller than the sum of its proper divisors (7831826976).

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

3157340640 is a wasteful number, since it uses less digits than its factorization.

3157340640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16881 (or 16873 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 3157340640 is about 56190.2183658330. The cubic root of 3157340640 is about 1467.0350158387.

The spelling of 3157340640 in words is "three billion, one hundred fifty-seven million, three hundred forty thousand, six hundred forty".