74405730 has 32 divisors (see below), whose sum is σ = 204084864. Its totient is φ = 17006976.

The previous prime is 74405701. The next prime is 74405741. The reversal of 74405730 is 3750447.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 176947 + ... + 177366.

It is an arithmetic number, because the mean of its divisors is an integer number (6377652).

Almost surely, 2^74405730 is an apocalyptic number.

74405730 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74405730 is an abundant number, since it is smaller than the sum of its proper divisors (129679134).

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

74405730 is a wasteful number, since it uses less digits than its factorization.

74405730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354330.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 74405730 is about 8625.8756077282. The cubic root of 74405730 is about 420.5995405874.

The spelling of 74405730 in words is "seventy-four million, four hundred five thousand, seven hundred thirty".