74923380 has 120 divisors (see below), whose sum is σ = 268654848. Its totient is φ = 17122752.

The previous prime is 74923367. The next prime is 74923399. The reversal of 74923380 is 8332947.

It is a super-2 number, since 2×74923380² = 11227025741248800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8037 + ... + 14643.

Almost surely, 2^74923380 is an apocalyptic number.

74923380 is a gapful number since it is divisible by the number (70) 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 74923380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134327424).

74923380 is an abundant number, since it is smaller than the sum of its proper divisors (193731468).

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

74923380 is a wasteful number, since it uses less digits than its factorization.

74923380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6635 (or 6624 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 74923380 is about 8655.8292497022. The cubic root of 74923380 is about 421.5726752512.

The spelling of 74923380 in words is "seventy-four million, nine hundred twenty-three thousand, three hundred eighty".