74856156 has 12 divisors (see below), whose sum is σ = 174664392. Its totient is φ = 24952048.

The previous prime is 74856149. The next prime is 74856157. The reversal of 74856156 is 65165847.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74856157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3118995 + ... + 3119018.

It is an arithmetic number, because the mean of its divisors is an integer number (14555366).

Almost surely, 2^74856156 is an apocalyptic number.

It is an amenable number.

74856156 is an abundant number, since it is smaller than the sum of its proper divisors (99808236).

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

74856156 is a wasteful number, since it uses less digits than its factorization.

74856156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6238020 (or 6238018 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 74856156 is about 8651.9452148057. The cubic root of 74856156 is about 421.4465540431.

The spelling of 74856156 in words is "seventy-four million, eight hundred fifty-six thousand, one hundred fifty-six".