74069136 has 120 divisors (see below), whose sum is σ = 222842880. Its totient is φ = 22883328.

The previous prime is 74069129. The next prime is 74069141. The reversal of 74069136 is 63196047.

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 74069136.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193201 + ... + 193583.

It is an arithmetic number, because the mean of its divisors is an integer number (1857024).

Almost surely, 2^74069136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74069136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111421440).

74069136 is an abundant number, since it is smaller than the sum of its proper divisors (148773744).

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

74069136 is a wasteful number, since it uses less digits than its factorization.

74069136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 74069136 is about 8606.3427772777. The cubic root of 74069136 is about 419.9643507157.

The spelling of 74069136 in words is "seventy-four million, sixty-nine thousand, one hundred thirty-six".