49353978 has 32 divisors (see below), whose sum is σ = 100270080. Its totient is φ = 16193520.

The previous prime is 49353949. The next prime is 49353979. The reversal of 49353978 is 87935394.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49353979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181983 + ... + 182253.

It is an arithmetic number, because the mean of its divisors is an integer number (3133440).

Almost surely, 2^49353978 is an apocalyptic number.

49353978 is an abundant number, since it is smaller than the sum of its proper divisors (50916102).

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

49353978 is a wasteful number, since it uses less digits than its factorization.

49353978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642.

The product of its digits is 816480, while the sum is 48.

The square root of 49353978 is about 7025.2386436334. The cubic root of 49353978 is about 366.8096234117.

The spelling of 49353978 in words is "forty-nine million, three hundred fifty-three thousand, nine hundred seventy-eight".