3123990390 has 16 divisors (see below), whose sum is σ = 7497577008. Its totient is φ = 833064096.

The previous prime is 3123990379. The next prime is 3123990409. The reversal of 3123990390 is 930993213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52066477 + ... + 52066536.

It is an arithmetic number, because the mean of its divisors is an integer number (468598563).

Almost surely, 2^3123990390 is an apocalyptic number.

3123990390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3123990390 is an abundant number, since it is smaller than the sum of its proper divisors (4373586618).

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

3123990390 is a wasteful number, since it uses less digits than its factorization.

3123990390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104133023.

The product of its (nonzero) digits is 39366, while the sum is 39.

The square root of 3123990390 is about 55892.6684816533. The cubic root of 3123990390 is about 1461.8514058785.

The spelling of 3123990390 in words is "three billion, one hundred twenty-three million, nine hundred ninety thousand, three hundred ninety".