18450498 has 16 divisors (see below), whose sum is σ = 40255776. Its totient is φ = 5591040.

The previous prime is 18450479. The next prime is 18450541. The reversal of 18450498 is 89405481.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139711 + ... + 139842.

It is an arithmetic number, because the mean of its divisors is an integer number (2515986).

Almost surely, 2^18450498 is an apocalyptic number.

18450498 is an abundant number, since it is smaller than the sum of its proper divisors (21805278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18450498 is a wasteful number, since it uses less digits than its factorization.

18450498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279569.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 18450498 is about 4295.4042883063. The cubic root of 18450498 is about 264.2425170485.

The spelling of 18450498 in words is "eighteen million, four hundred fifty thousand, four hundred ninety-eight".