74919380 has 48 divisors (see below), whose sum is σ = 161360640. Its totient is φ = 29209728.

The previous prime is 74919379. The next prime is 74919401. The reversal of 74919380 is 8391947.

It is a happy number.

It is a super-2 number, since 2×74919380² = 11225826999168800, 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 15 ways as a sum of consecutive naturals, for example, 203957 + ... + 204323.

It is an arithmetic number, because the mean of its divisors is an integer number (3361680).

Almost surely, 2^74919380 is an apocalyptic number.

It is an amenable number.

74919380 is an abundant number, since it is smaller than the sum of its proper divisors (86441260).

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

74919380 is a wasteful number, since it uses less digits than its factorization.

74919380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 74919380 is about 8655.5981884558. The cubic root of 74919380 is about 421.5651728280.

The spelling of 74919380 in words is "seventy-four million, nine hundred nineteen thousand, three hundred eighty".