3129009090 has 64 divisors (see below), whose sum is σ = 7623106560. Its totient is φ = 821845440.

The previous prime is 3129009077. The next prime is 3129009119. The reversal of 3129009090 is 909009213.

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, 1152835 + ... + 1155545.

It is an arithmetic number, because the mean of its divisors is an integer number (119111040).

Almost surely, 2^3129009090 is an apocalyptic number.

3129009090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3129009090 is an abundant number, since it is smaller than the sum of its proper divisors (4494097470).

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

3129009090 is a wasteful number, since it uses less digits than its factorization.

3129009090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 3129009090 is about 55937.5463351763. The cubic root of 3129009090 is about 1462.6338099498.

The spelling of 3129009090 in words is "three billion, one hundred twenty-nine million, nine thousand, ninety".