3157989240 has 384 divisors, whose sum is σ = 12115008000. Its totient is φ = 653571072.

The previous prime is 3157989199. The next prime is 3157989293. The reversal of 3157989240 is 429897513.

It is a self number, because there is not a number n which added to its sum of digits gives 3157989240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2568946 + ... + 2570174.

It is an arithmetic number, because the mean of its divisors is an integer number (31549500).

Almost surely, 2^3157989240 is an apocalyptic number.

3157989240 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 3157989240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6057504000).

3157989240 is an abundant number, since it is smaller than the sum of its proper divisors (8957018760).

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

3157989240 is a wasteful number, since it uses less digits than its factorization.

3157989240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299 (or 1288 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 3157989240 is about 56195.9895366208. The cubic root of 3157989240 is about 1467.1354646944.

The spelling of 3157989240 in words is "three billion, one hundred fifty-seven million, nine hundred eighty-nine thousand, two hundred forty".