74406290 has 16 divisors (see below), whose sum is σ = 153064512. Its totient is φ = 25510704.

The previous prime is 74406289. The next prime is 74406301. The reversal of 74406290 is 9260447.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531404 + ... + 531543.

It is an arithmetic number, because the mean of its divisors is an integer number (9566532).

Almost surely, 2^74406290 is an apocalyptic number.

74406290 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74406290 is an abundant number, since it is smaller than the sum of its proper divisors (78658222).

74406290 is a wasteful number, since it uses less digits than its factorization.

74406290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062961.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 74406290 is about 8625.9080681398. The cubic root of 74406290 is about 420.6005957712.

The spelling of 74406290 in words is "seventy-four million, four hundred six thousand, two hundred ninety".