2931085644 has 24 divisors (see below), whose sum is σ = 6842572800. Its totient is φ = 976546704.

The previous prime is 2931085631. The next prime is 2931085657. The reversal of 2931085644 is 4465801392.

2931085644 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2931085631) and next prime (2931085657).

It is a junction number, because it is equal to n+sod(n) for n = 2931085596 and 2931085605.

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, 34444 + ... + 83955.

It is an arithmetic number, because the mean of its divisors is an integer number (285107200).

Almost surely, 2^2931085644 is an apocalyptic number.

It is an amenable number.

2931085644 is an abundant number, since it is smaller than the sum of its proper divisors (3911487156).

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

2931085644 is a wasteful number, since it uses less digits than its factorization.

2931085644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120469 (or 120467 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 2931085644 is about 54139.5016970049. The cubic root of 2931085644 is about 1431.1203901524.

The spelling of 2931085644 in words is "two billion, nine hundred thirty-one million, eighty-five thousand, six hundred forty-four".