49638520 has 32 divisors (see below), whose sum is σ = 112551120. Its totient is φ = 19701760.

The previous prime is 49638503. The next prime is 49638541. The reversal of 49638520 is 2583694.

It is a self number, because there is not a number n which added to its sum of digits gives 49638520.

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, 504 + ... + 9976.

Almost surely, 2^49638520 is an apocalyptic number.

49638520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49638520 is an abundant number, since it is smaller than the sum of its proper divisors (62912600).

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

49638520 is a wasteful number, since it uses less digits than its factorization.

49638520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9615 (or 9611 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 49638520 is about 7045.4609501437. The cubic root of 49638520 is about 367.5131992729.

The spelling of 49638520 in words is "forty-nine million, six hundred thirty-eight thousand, five hundred twenty".