74251772 has 24 divisors (see below), whose sum is σ = 156320640. Its totient is φ = 30147120.

The previous prime is 74251763. The next prime is 74251777. The reversal of 74251772 is 27715247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74251777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69254 + ... + 70317.

It is an arithmetic number, because the mean of its divisors is an integer number (6513360).

Almost surely, 2^74251772 is an apocalyptic number.

It is an amenable number.

74251772 is an abundant number, since it is smaller than the sum of its proper divisors (82068868).

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

74251772 is a wasteful number, since it uses less digits than its factorization.

74251772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139601 (or 139599 counting only the distinct ones).

The product of its digits is 27440, while the sum is 35.

The square root of 74251772 is about 8616.9467910624. The cubic root of 74251772 is about 420.3092431500.

The spelling of 74251772 in words is "seventy-four million, two hundred fifty-one thousand, seven hundred seventy-two".