74465136 has 40 divisors (see below), whose sum is σ = 213743760. Its totient is φ = 24821568.

The previous prime is 74465129. The next prime is 74465137. The reversal of 74465136 is 63156447.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 74465136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74465137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85755 + ... + 86618.

It is an arithmetic number, because the mean of its divisors is an integer number (5343594).

Almost surely, 2^74465136 is an apocalyptic number.

It is an amenable number.

74465136 is an abundant number, since it is smaller than the sum of its proper divisors (139278624).

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

74465136 is a wasteful number, since it uses less digits than its factorization.

74465136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172390 (or 172378 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 74465136 is about 8629.3183971853. The cubic root of 74465136 is about 420.7114472446.

The spelling of 74465136 in words is "seventy-four million, four hundred sixty-five thousand, one hundred thirty-six".