74456890 has 8 divisors (see below), whose sum is σ = 134022420. Its totient is φ = 29782752.

The previous prime is 74456881. The next prime is 74456903. The reversal of 74456890 is 9865447.

It can be written as a sum of positive squares in 2 ways, for example, as 73942801 + 514089 = 8599^2 + 717^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 3722835 + ... + 3722854.

Almost surely, 2^74456890 is an apocalyptic number.

74456890 is a deficient number, since it is larger than the sum of its proper divisors (59565530).

74456890 is a wasteful number, since it uses less digits than its factorization.

74456890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7445696.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 74456890 is about 8628.8405941934. The cubic root of 74456890 is about 420.6959173164.

The spelling of 74456890 in words is "seventy-four million, four hundred fifty-six thousand, eight hundred ninety".