74509368 has 128 divisors (see below), whose sum is σ = 209848320. Its totient is φ = 21934080.

The previous prime is 74509367. The next prime is 74509433. The reversal of 74509368 is 86390547.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74509363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 543796 + ... + 543932.

It is an arithmetic number, because the mean of its divisors is an integer number (1639440).

Almost surely, 2^74509368 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 74509368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104924160).

74509368 is an abundant number, since it is smaller than the sum of its proper divisors (135338952).

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

74509368 is a wasteful number, since it uses less digits than its factorization.

74509368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 74509368 is about 8631.8809074268. The cubic root of 74509368 is about 420.7947310756.

The spelling of 74509368 in words is "seventy-four million, five hundred nine thousand, three hundred sixty-eight".