74170072 has 32 divisors (see below), whose sum is σ = 148593600. Its totient is φ = 34604064.

The previous prime is 74170069. The next prime is 74170111. The reversal of 74170072 is 27007147.

It is a self number, because there is not a number n which added to its sum of digits gives 74170072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6543 + ... + 13825.

It is an arithmetic number, because the mean of its divisors is an integer number (4643550).

Almost surely, 2^74170072 is an apocalyptic number.

It is an amenable number.

74170072 is an abundant number, since it is smaller than the sum of its proper divisors (74423528).

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

74170072 is a wasteful number, since it uses less digits than its factorization.

74170072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7375 (or 7371 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 74170072 is about 8612.2048280333. The cubic root of 74170072 is about 420.1550296923.

The spelling of 74170072 in words is "seventy-four million, one hundred seventy thousand, seventy-two".