49991216 has 20 divisors (see below), whose sum is σ = 105663624. Its totient is φ = 22723200.

The previous prime is 49991209. The next prime is 49991219. The reversal of 49991216 is 61219994.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (49991219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141845 + ... + 142196.

Almost surely, 2^49991216 is an apocalyptic number.

It is an amenable number.

49991216 is an abundant number, since it is smaller than the sum of its proper divisors (55672408).

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

49991216 is a wasteful number, since it uses less digits than its factorization.

49991216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284060 (or 284054 counting only the distinct ones).

The product of its digits is 34992, while the sum is 41.

The square root of 49991216 is about 7070.4466619868. The cubic root of 49991216 is about 368.3815749121.

The spelling of 49991216 in words is "forty-nine million, nine hundred ninety-one thousand, two hundred sixteen".