3129104072 has 16 divisors (see below), whose sum is σ = 6175863600. Its totient is φ = 1482207120.

The previous prime is 3129104063. The next prime is 3129104107. The reversal of 3129104072 is 2704019213.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10292954 + ... + 10293257.

It is an arithmetic number, because the mean of its divisors is an integer number (385991475).

Almost surely, 2^3129104072 is an apocalyptic number.

It is an amenable number.

3129104072 is a deficient number, since it is larger than the sum of its proper divisors (3046759528).

3129104072 is a wasteful number, since it uses less digits than its factorization.

3129104072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20586236 (or 20586232 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 3129104072 is about 55938.3953291476. The cubic root of 3129104072 is about 1462.6486093613.

The spelling of 3129104072 in words is "three billion, one hundred twenty-nine million, one hundred four thousand, seventy-two".