49992478 has 16 divisors (see below), whose sum is σ = 82853280. Its totient is φ = 22502656.

The previous prime is 49992469. The next prime is 49992497. The reversal of 49992478 is 87429994.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31183 + ... + 32746.

It is an arithmetic number, because the mean of its divisors is an integer number (5178330).

Almost surely, 2^49992478 is an apocalyptic number.

49992478 is a deficient number, since it is larger than the sum of its proper divisors (32860802).

49992478 is a wasteful number, since it uses less digits than its factorization.

49992478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63971.

The product of its digits is 1306368, while the sum is 52.

The square root of 49992478 is about 7070.5359061389. The cubic root of 49992478 is about 368.3846747476.

The spelling of 49992478 in words is "forty-nine million, nine hundred ninety-two thousand, four hundred seventy-eight".