74949392 has 80 divisors (see below), whose sum is σ = 171774720. Its totient is φ = 31021056.

The previous prime is 74949389. The next prime is 74949403. The reversal of 74949392 is 29394947.

It is a super-2 number, since 2×74949392² = 11234822722339328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 727613 + ... + 727715.

It is an arithmetic number, because the mean of its divisors is an integer number (2147184).

Almost surely, 2^74949392 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 74949392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85887360).

74949392 is an abundant number, since it is smaller than the sum of its proper divisors (96825328).

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

74949392 is a wasteful number, since it uses less digits than its factorization.

74949392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 274 counting only the distinct ones).

The product of its digits is 489888, while the sum is 47.

The square root of 74949392 is about 8657.3316905384. The cubic root of 74949392 is about 421.6214569960.

The spelling of 74949392 in words is "seventy-four million, nine hundred forty-nine thousand, three hundred ninety-two".