74658672 has 100 divisors (see below), whose sum is σ = 235772856. Its totient is φ = 22619520.

The previous prime is 74658671. The next prime is 74658697. The reversal of 74658672 is 27685647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74658671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11638 + ... + 16874.

Almost surely, 2^74658672 is an apocalyptic number.

74658672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74658672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117886428).

74658672 is an abundant number, since it is smaller than the sum of its proper divisors (161114184).

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

74658672 is a wasteful number, since it uses less digits than its factorization.

74658672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268 (or 5253 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 74658672 is about 8640.5249840504. The cubic root of 74658672 is about 421.0756103819.

The spelling of 74658672 in words is "seventy-four million, six hundred fifty-eight thousand, six hundred seventy-two".