74985290 has 16 divisors (see below), whose sum is σ = 140842368. Its totient is φ = 28689936.

The previous prime is 74985289. The next prime is 74985307. The reversal of 74985290 is 9258947.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162782 + ... + 163241.

It is an arithmetic number, because the mean of its divisors is an integer number (8802648).

Almost surely, 2^74985290 is an apocalyptic number.

74985290 is a deficient number, since it is larger than the sum of its proper divisors (65857078).

74985290 is a wasteful number, since it uses less digits than its factorization.

74985290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326053.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 74985290 is about 8659.4047139512. The cubic root of 74985290 is about 421.6887599715.

The spelling of 74985290 in words is "seventy-four million, nine hundred eighty-five thousand, two hundred ninety".