3115139400 has 288 divisors, whose sum is σ = 10968048000. Its totient is φ = 791293440.

The previous prime is 3115139329. The next prime is 3115139411. The reversal of 3115139400 is 49315113.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4332241 + ... + 4332959.

It is an arithmetic number, because the mean of its divisors is an integer number (38083500).

Almost surely, 2^3115139400 is an apocalyptic number.

3115139400 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 3115139400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5484024000).

3115139400 is an abundant number, since it is smaller than the sum of its proper divisors (7852908600).

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

3115139400 is a wasteful number, since it uses less digits than its factorization.

3115139400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 3115139400 is about 55813.4338667672. The cubic root of 3115139400 is about 1460.4695118476.

The spelling of 3115139400 in words is "three billion, one hundred fifteen million, one hundred thirty-nine thousand, four hundred".