2931841990 has 96 divisors (see below), whose sum is σ = 6751309824. Its totient is φ = 906413760.

The previous prime is 2931841973. The next prime is 2931842003. The reversal of 2931841990 is 991481392.

It is a happy number.

2931841990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2931841990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 682389 + ... + 686671.

It is an arithmetic number, because the mean of its divisors is an integer number (70326144).

Almost surely, 2^2931841990 is an apocalyptic number.

2931841990 is an abundant number, since it is smaller than the sum of its proper divisors (3819467834).

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

2931841990 is a wasteful number, since it uses less digits than its factorization.

2931841990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442 (or 4435 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 2931841990 is about 54146.4864049367. The cubic root of 2931841990 is about 1431.2434764105.

The spelling of 2931841990 in words is "two billion, nine hundred thirty-one million, eight hundred forty-one thousand, nine hundred ninety".