49890920 has 32 divisors (see below), whose sum is σ = 118859400. Its totient is φ = 18782208.

The previous prime is 49890917. The next prime is 49890943. The reversal of 49890920 is 2909894.

49890920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 29658916 + 20232004 = 5446^2 + 4498^2 .

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 7 ways as a sum of consecutive naturals, for example, 36005 + ... + 37364.

Almost surely, 2^49890920 is an apocalyptic number.

49890920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49890920 is an abundant number, since it is smaller than the sum of its proper divisors (68968480).

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

49890920 is a wasteful number, since it uses less digits than its factorization.

49890920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73397 (or 73393 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 49890920 is about 7063.3504797653. The cubic root of 49890920 is about 368.1350520381.

The spelling of 49890920 in words is "forty-nine million, eight hundred ninety thousand, nine hundred twenty".