49900980 has 24 divisors (see below), whose sum is σ = 139722912. Its totient is φ = 13306912.

The previous prime is 49900957. The next prime is 49900987. The reversal of 49900980 is 8900994.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49900987) 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, 415782 + ... + 415901.

It is an arithmetic number, because the mean of its divisors is an integer number (5821788).

Almost surely, 2^49900980 is an apocalyptic number.

It is an amenable number.

49900980 is an abundant number, since it is smaller than the sum of its proper divisors (89821932).

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

49900980 is a wasteful number, since it uses less digits than its factorization.

49900980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831695 (or 831693 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 49900980 is about 7064.0625705043. The cubic root of 49900980 is about 368.1597939466.

The spelling of 49900980 in words is "forty-nine million, nine hundred thousand, nine hundred eighty".