49644678 has 8 divisors (see below), whose sum is σ = 99289368. Its totient is φ = 16548224.

The previous prime is 49644659. The next prime is 49644689. The reversal of 49644678 is 87644694.

It is a sphenic number, since it is the product of 3 distinct primes.

49644678 is an admirable number.

It is a Curzon number.

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, 4137051 + ... + 4137062.

It is an arithmetic number, because the mean of its divisors is an integer number (12411171).

Almost surely, 2^49644678 is an apocalyptic number.

49644678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

49644678 is a wasteful number, since it uses less digits than its factorization.

49644678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8274118.

The product of its digits is 1161216, while the sum is 48.

The square root of 49644678 is about 7045.8979555483. The cubic root of 49644678 is about 367.5283961584.

The spelling of 49644678 in words is "forty-nine million, six hundred forty-four thousand, six hundred seventy-eight".