49979378 has 16 divisors (see below), whose sum is σ = 79482624. Its totient is φ = 23528880.

The previous prime is 49979357. The next prime is 49979399. The reversal of 49979378 is 87397994.

It is an interprime number because it is at equal distance from previous prime (49979357) and next prime (49979399).

It is a Curzon 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, 8600 + ... + 13187.

It is an arithmetic number, because the mean of its divisors is an integer number (4967664).

Almost surely, 2^49979378 is an apocalyptic number.

49979378 is a deficient number, since it is larger than the sum of its proper divisors (29503246).

49979378 is a wasteful number, since it uses less digits than its factorization.

49979378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21857.

The product of its digits is 3429216, while the sum is 56.

The square root of 49979378 is about 7069.6094658757. The cubic root of 49979378 is about 368.3524948343.

The spelling of 49979378 in words is "forty-nine million, nine hundred seventy-nine thousand, three hundred seventy-eight".