2331279390 has 64 divisors (see below), whose sum is σ = 6207217920. Its totient is φ = 555575040.

The previous prime is 2331279337. The next prime is 2331279413. The reversal of 2331279390 is 939721332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40399 + ... + 79338.

It is an arithmetic number, because the mean of its divisors is an integer number (96987780).

Almost surely, 2^2331279390 is an apocalyptic number.

2331279390 is an abundant number, since it is smaller than the sum of its proper divisors (3875938530).

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

2331279390 is a wasteful number, since it uses less digits than its factorization.

2331279390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119817.

The product of its (nonzero) digits is 61236, while the sum is 39.

The square root of 2331279390 is about 48283.3241399140. The cubic root of 2331279390 is about 1325.9631094296.

The spelling of 2331279390 in words is "two billion, three hundred thirty-one million, two hundred seventy-nine thousand, three hundred ninety".