18404482 has 8 divisors (see below), whose sum is σ = 27783036. Its totient is φ = 9143472.

The previous prime is 18404471. The next prime is 18404497. The reversal of 18404482 is 28440481.

It can be written as a sum of positive squares in 2 ways, for example, as 17214201 + 1190281 = 4149^2 + 1091^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28993 + ... + 29620.

Almost surely, 2^18404482 is an apocalyptic number.

18404482 is a deficient number, since it is larger than the sum of its proper divisors (9378554).

18404482 is a wasteful number, since it uses less digits than its factorization.

18404482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58772.

The product of its (nonzero) digits is 8192, while the sum is 31.

The square root of 18404482 is about 4290.0445219135. The cubic root of 18404482 is about 264.0226583705.

The spelling of 18404482 in words is "eighteen million, four hundred four thousand, four hundred eighty-two".