18498446 has 16 divisors (see below), whose sum is σ = 28612176. Its totient is φ = 8963136.

The previous prime is 18498427. The next prime is 18498451. The reversal of 18498446 is 64489481.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 18498397 and 18498406.

It is a congruent number.

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, 33545 + ... + 34091.

It is an arithmetic number, because the mean of its divisors is an integer number (1788261).

Almost surely, 2^18498446 is an apocalyptic number.

18498446 is a deficient number, since it is larger than the sum of its proper divisors (10113730).

18498446 is a wasteful number, since it uses less digits than its factorization.

18498446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043.

The product of its digits is 221184, while the sum is 44.

The square root of 18498446 is about 4300.9819808969. The cubic root of 18498446 is about 264.4712180259.

The spelling of 18498446 in words is "eighteen million, four hundred ninety-eight thousand, four hundred forty-six".