74493690 has 32 divisors (see below), whose sum is σ = 179867520. Its totient is φ = 19744704.

The previous prime is 74493689. The next prime is 74493703. The reversal of 74493690 is 9639447.

It is a super-2 number, since 2×74493690² = 11098619699632200, 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, 2425 + ... + 12444.

It is an arithmetic number, because the mean of its divisors is an integer number (5620860).

Almost surely, 2^74493690 is an apocalyptic number.

74493690 is an abundant number, since it is smaller than the sum of its proper divisors (105373830).

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

74493690 is a wasteful number, since it uses less digits than its factorization.

74493690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15046.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 74493690 is about 8630.9727145902. The cubic root of 74493690 is about 420.7652149546.

The spelling of 74493690 in words is "seventy-four million, four hundred ninety-three thousand, six hundred ninety".