74712900 has 72 divisors (see below), whose sum is σ = 217104160. Its totient is φ = 19837440.

The previous prime is 74712893. The next prime is 74712923. The reversal of 74712900 is 921747.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 100731 + ... + 101469.

Almost surely, 2^74712900 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 74712900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108552080).

74712900 is an abundant number, since it is smaller than the sum of its proper divisors (142391260).

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

74712900 is a wasteful number, since it uses less digits than its factorization.

74712900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 74712900 is about 8643.6624182114. The cubic root of 74712900 is about 421.1775345180.

The spelling of 74712900 in words is "seventy-four million, seven hundred twelve thousand, nine hundred".