49131780 has 48 divisors (see below), whose sum is σ = 138063744. Its totient is φ = 13054720.

The previous prime is 49131773. The next prime is 49131781. The reversal of 49131780 is 8713194.

It is not an unprimeable number, because it can be changed into a prime (49131781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17344 + ... + 19976.

It is an arithmetic number, because the mean of its divisors is an integer number (2876328).

Almost surely, 2^49131780 is an apocalyptic number.

It is an amenable number.

49131780 is an abundant number, since it is smaller than the sum of its proper divisors (88931964).

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

49131780 is a wasteful number, since it uses less digits than its factorization.

49131780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956 (or 2954 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 49131780 is about 7009.4065369331. The cubic root of 49131780 is about 366.2583204282.

The spelling of 49131780 in words is "forty-nine million, one hundred thirty-one thousand, seven hundred eighty".