49990666 has 24 divisors (see below), whose sum is σ = 82851552. Its totient is φ = 22605000.

The previous prime is 49990649. The next prime is 49990679. The reversal of 49990666 is 66609994.

It is a happy number.

49990666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 60331 + ... + 61153.

It is an arithmetic number, because the mean of its divisors is an integer number (3452148).

Almost surely, 2^49990666 is an apocalyptic number.

49990666 is a deficient number, since it is larger than the sum of its proper divisors (32860886).

49990666 is a wasteful number, since it uses less digits than its factorization.

49990666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 49.

The square root of 49990666 is about 7070.4077675902. The cubic root of 49990666 is about 368.3802239374.

The spelling of 49990666 in words is "forty-nine million, nine hundred ninety thousand, six hundred sixty-six".