74320912 has 40 divisors (see below), whose sum is σ = 153490176. Its totient is φ = 34780416.

The previous prime is 74320903. The next prime is 74320921. The reversal of 74320912 is 21902347.

It is an interprime number because it is at equal distance from previous prime (74320903) and next prime (74320921).

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, 15148 + ... + 19444.

Almost surely, 2^74320912 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 74320912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76745088).

74320912 is an abundant number, since it is smaller than the sum of its proper divisors (79169264).

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

74320912 is a wasteful number, since it uses less digits than its factorization.

74320912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375 (or 4369 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 74320912 is about 8620.9577194184. The cubic root of 74320912 is about 420.4396605353.

The spelling of 74320912 in words is "seventy-four million, three hundred twenty thousand, nine hundred twelve".