74770512 has 80 divisors (see below), whose sum is σ = 201653760. Its totient is φ = 23846400.

The previous prime is 74770489. The next prime is 74770513. The reversal of 74770512 is 21507747.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74770513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161962 + ... + 162422.

It is an arithmetic number, because the mean of its divisors is an integer number (2520672).

Almost surely, 2^74770512 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 74770512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100826880).

74770512 is an abundant number, since it is smaller than the sum of its proper divisors (126883248).

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

74770512 is a wasteful number, since it uses less digits than its factorization.

74770512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 74770512 is about 8646.9943911165. The cubic root of 74770512 is about 421.2857650280.

The spelling of 74770512 in words is "seventy-four million, seven hundred seventy thousand, five hundred twelve".