74270172 has 48 divisors (see below), whose sum is σ = 182310912. Its totient is φ = 23499840.

The previous prime is 74270171. The next prime is 74270177. The reversal of 74270172 is 27107247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74270171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17833 + ... + 21599.

It is an arithmetic number, because the mean of its divisors is an integer number (3798144).

Almost surely, 2^74270172 is an apocalyptic number.

It is an amenable number.

74270172 is an abundant number, since it is smaller than the sum of its proper divisors (108040740).

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

74270172 is a wasteful number, since it uses less digits than its factorization.

74270172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858 (or 3856 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 74270172 is about 8618.0143884772. The cubic root of 74270172 is about 420.3439586013.

The spelling of 74270172 in words is "seventy-four million, two hundred seventy thousand, one hundred seventy-two".