74255136 has 24 divisors (see below), whose sum is σ = 194919984. Its totient is φ = 24751680.

The previous prime is 74255101. The next prime is 74255143. The reversal of 74255136 is 63155247.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 74255097 and 74255106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386650 + ... + 386841.

It is an arithmetic number, because the mean of its divisors is an integer number (8121666).

Almost surely, 2^74255136 is an apocalyptic number.

It is an amenable number.

74255136 is an abundant number, since it is smaller than the sum of its proper divisors (120664848).

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

74255136 is a wasteful number, since it uses less digits than its factorization.

74255136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773504 (or 773496 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 74255136 is about 8617.1419856006. The cubic root of 74255136 is about 420.3155904685.

It can be divided in two parts, 7425 and 5136, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 74255136 in words is "seventy-four million, two hundred fifty-five thousand, one hundred thirty-six".