74407690 has 32 divisors (see below), whose sum is σ = 153394560. Its totient is φ = 25456704.

The previous prime is 74407687. The next prime is 74407709. The reversal of 74407690 is 9670447.

It is a super-2 number, since 2×74407690² = 11073008662272200, 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, 45324 + ... + 46936.

It is an arithmetic number, because the mean of its divisors is an integer number (4793580).

Almost surely, 2^74407690 is an apocalyptic number.

74407690 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74407690 is an abundant number, since it is smaller than the sum of its proper divisors (78986870).

74407690 is a wasteful number, since it uses less digits than its factorization.

74407690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 74407690 is about 8625.9892186346. The cubic root of 74407690 is about 420.6032337074.

The spelling of 74407690 in words is "seventy-four million, four hundred seven thousand, six hundred ninety".