18450074 has 16 divisors (see below), whose sum is σ = 28182600. Its totient is φ = 9057600.

The previous prime is 18450059. The next prime is 18450101. The reversal of 18450074 is 47005481.

It can be written as a sum of positive squares in 4 ways, for example, as 11122225 + 7327849 = 3335^2 + 2707^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29792 + ... + 30404.

Almost surely, 2^18450074 is an apocalyptic number.

18450074 is a deficient number, since it is larger than the sum of its proper divisors (9732526).

18450074 is a wasteful number, since it uses less digits than its factorization.

18450074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 18450074 is about 4295.3549329479. The cubic root of 18450074 is about 264.2404928992.

The spelling of 18450074 in words is "eighteen million, four hundred fifty thousand, seventy-four".