18024490 has 16 divisors (see below), whose sum is σ = 35393760. Its totient is φ = 6554320.

The previous prime is 18024469. The next prime is 18024493. The reversal of 18024490 is 9442081.

It is not an unprimeable number, because it can be changed into a prime (18024493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81820 + ... + 82039.

It is an arithmetic number, because the mean of its divisors is an integer number (2212110).

Almost surely, 2^18024490 is an apocalyptic number.

18024490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18024490 is a deficient number, since it is larger than the sum of its proper divisors (17369270).

18024490 is a wasteful number, since it uses less digits than its factorization.

18024490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163877.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 18024490 is about 4245.5258802650. The cubic root of 18024490 is about 262.1929410339.

The spelling of 18024490 in words is "eighteen million, twenty-four thousand, four hundred ninety".