74398812 has 24 divisors (see below), whose sum is σ = 175222656. Its totient is φ = 24567408.

The previous prime is 74398781. The next prime is 74398843. The reversal of 74398812 is 21889347.

It is an interprime number because it is at equal distance from previous prime (74398781) and next prime (74398843).

It is a super-2 number, since 2×74398812² = 11070366454022688, which contains 22 as substring.

It is a congruent number.

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, 27688 + ... + 30255.

It is an arithmetic number, because the mean of its divisors is an integer number (7300944).

Almost surely, 2^74398812 is an apocalyptic number.

It is an amenable number.

74398812 is an abundant number, since it is smaller than the sum of its proper divisors (100823844).

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

74398812 is a wasteful number, since it uses less digits than its factorization.

74398812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58057 (or 58055 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 74398812 is about 8625.4745956382. The cubic root of 74398812 is about 420.5865048629.

The spelling of 74398812 in words is "seventy-four million, three hundred ninety-eight thousand, eight hundred twelve".