74138136 has 32 divisors (see below), whose sum is σ = 185559360. Its totient is φ = 24684192.

The previous prime is 74138111. The next prime is 74138137. The reversal of 74138136 is 63183147.

It is a super-4 number, since 4×74138136⁴ (a number of 33 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74138097 and 74138106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74138137) 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, 34551 + ... + 36633.

It is an arithmetic number, because the mean of its divisors is an integer number (5798730).

Almost surely, 2^74138136 is an apocalyptic number.

It is an amenable number.

74138136 is an abundant number, since it is smaller than the sum of its proper divisors (111421224).

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

74138136 is a wasteful number, since it uses less digits than its factorization.

74138136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575 (or 3571 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 74138136 is about 8610.3505155133. The cubic root of 74138136 is about 420.0947178668.

The spelling of 74138136 in words is "seventy-four million, one hundred thirty-eight thousand, one hundred thirty-six".