49739520 has 72 divisors (see below), whose sum is σ = 158867856. Its totient is φ = 13262848.

The previous prime is 49739497. The next prime is 49739539. The reversal of 49739520 is 2593794.

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, 2637 + ... + 10316.

It is an arithmetic number, because the mean of its divisors is an integer number (2206498).

Almost surely, 2^49739520 is an apocalyptic number.

49739520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49739520 is an abundant number, since it is smaller than the sum of its proper divisors (109128336).

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

49739520 is a wasteful number, since it uses less digits than its factorization.

49739520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12977 (or 12963 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 49739520 is about 7052.6250432020. The cubic root of 49739520 is about 367.7622913503.

The spelling of 49739520 in words is "forty-nine million, seven hundred thirty-nine thousand, five hundred twenty".