3109812990 has 32 divisors (see below), whose sum is σ = 7470009216. Its totient is φ = 828565920.

The previous prime is 3109812983. The next prime is 3109813033. The reversal of 3109812990 is 992189013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9132 + ... + 79391.

It is an arithmetic number, because the mean of its divisors is an integer number (233437788).

Almost surely, 2^3109812990 is an apocalyptic number.

3109812990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3109812990 is an abundant number, since it is smaller than the sum of its proper divisors (4360196226).

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

3109812990 is a wasteful number, since it uses less digits than its factorization.

3109812990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89704.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 3109812990 is about 55765.6972519846. The cubic root of 3109812990 is about 1459.6366441120.

The spelling of 3109812990 in words is "three billion, one hundred nine million, eight hundred twelve thousand, nine hundred ninety".