49191680 has 36 divisors (see below), whose sum is σ = 117832512. Its totient is φ = 19676160.

The previous prime is 49191673. The next prime is 49191691. The reversal of 49191680 is 8619194.

It is a happy 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, 17936 + ... + 20495.

Almost surely, 2^49191680 is an apocalyptic number.

49191680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49191680 is an abundant number, since it is smaller than the sum of its proper divisors (68640832).

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

49191680 is an equidigital number, since it uses as much as digits as its factorization.

49191680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38452 (or 38438 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 49191680 is about 7013.6780650383. The cubic root of 49191680 is about 366.4071037187.

The spelling of 49191680 in words is "forty-nine million, one hundred ninety-one thousand, six hundred eighty".