49365978 has 16 divisors (see below), whose sum is σ = 101028576. Its totient is φ = 16072560.

The previous prime is 49365973. The next prime is 49366001. The reversal of 49365978 is 87956394.

It is a self number, because there is not a number n which added to its sum of digits gives 49365978.

It is not an unprimeable number, because it can be changed into a prime (49365973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95413 + ... + 95928.

It is an arithmetic number, because the mean of its divisors is an integer number (6314286).

Almost surely, 2^49365978 is an apocalyptic number.

49365978 is an abundant number, since it is smaller than the sum of its proper divisors (51662598).

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

49365978 is a wasteful number, since it uses less digits than its factorization.

49365978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191389.

The product of its digits is 1632960, while the sum is 51.

The square root of 49365978 is about 7026.0926552388. The cubic root of 49365978 is about 366.8393498826.

The spelling of 49365978 in words is "forty-nine million, three hundred sixty-five thousand, nine hundred seventy-eight".