49820664 has 32 divisors (see below), whose sum is σ = 126414720. Its totient is φ = 16358496.

The previous prime is 49820663. The next prime is 49820669. The reversal of 49820664 is 46602894.

It is a super-2 number, since 2×49820664² = 4964197122801792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49820663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13884 + ... + 17099.

It is an arithmetic number, because the mean of its divisors is an integer number (3950460).

Almost surely, 2^49820664 is an apocalyptic number.

It is an amenable number.

49820664 is an abundant number, since it is smaller than the sum of its proper divisors (76594056).

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

49820664 is a wasteful number, since it uses less digits than its factorization.

49820664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31059 (or 31055 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 49820664 is about 7058.3754504843. The cubic root of 49820664 is about 367.9621692365.

The spelling of 49820664 in words is "forty-nine million, eight hundred twenty thousand, six hundred sixty-four".