74612736 has 192 divisors, whose sum is σ = 245363040. Its totient is φ = 21626880.

The previous prime is 74612731. The next prime is 74612773. The reversal of 74612736 is 63721647.

74612736 is a `hidden beast` number, since 7 + 4 + 612 + 7 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

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 74612736.

It is not an unprimeable number, because it can be changed into a prime (74612731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3244021 + ... + 3244043.

Almost surely, 2^74612736 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 74612736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122681520).

74612736 is an abundant number, since it is smaller than the sum of its proper divisors (170750304).

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

74612736 is a wasteful number, since it uses less digits than its factorization.

74612736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 39 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 74612736 is about 8637.8664032271. The cubic root of 74612736 is about 420.9892328404.

The spelling of 74612736 in words is "seventy-four million, six hundred twelve thousand, seven hundred thirty-six".