49865680 has 20 divisors (see below), whose sum is σ = 115937892. Its totient is φ = 19946240.

The previous prime is 49865623. The next prime is 49865713. The reversal of 49865680 is 8656894.

It can be written as a sum of positive squares in 2 ways, for example, as 8340544 + 41525136 = 2888^2 + 6444^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 49865680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311581 + ... + 311740.

Almost surely, 2^49865680 is an apocalyptic number.

49865680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49865680 is an abundant number, since it is smaller than the sum of its proper divisors (66072212).

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

49865680 is a wasteful number, since it uses less digits than its factorization.

49865680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623334 (or 623328 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 49865680 is about 7061.5635662366. The cubic root of 49865680 is about 368.0729612738.

The spelling of 49865680 in words is "forty-nine million, eight hundred sixty-five thousand, six hundred eighty".