2990838646 has 16 divisors (see below), whose sum is σ = 4632312960. Its totient is φ = 1446762240.

The previous prime is 2990838629. The next prime is 2990838667. The reversal of 2990838646 is 6468380992.

It is a happy number.

It is a super-2 number, since 2×2990838646² = 17890231612814226632, which contains 22 as substring.

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, 397350 + ... + 404806.

It is an arithmetic number, because the mean of its divisors is an integer number (289519560).

Almost surely, 2^2990838646 is an apocalyptic number.

2990838646 is a deficient number, since it is larger than the sum of its proper divisors (1641474314).

2990838646 is a wasteful number, since it uses less digits than its factorization.

2990838646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13959.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The square root of 2990838646 is about 54688.5604674323. The cubic root of 2990838646 is about 1440.7799667987.

The spelling of 2990838646 in words is "two billion, nine hundred ninety million, eight hundred thirty-eight thousand, six hundred forty-six".