18242464 has 12 divisors (see below), whose sum is σ = 35914914. Its totient is φ = 9121216.

The previous prime is 18242437. The next prime is 18242503. The reversal of 18242464 is 46424281.

It can be written as a sum of positive squares in only one way, i.e., 18147600 + 94864 = 4260^2 + 308^2 .

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 as a sum of consecutive naturals, namely, 285007 + ... + 285070.

Almost surely, 2^18242464 is an apocalyptic number.

It is an amenable number.

18242464 is a deficient number, since it is larger than the sum of its proper divisors (17672450).

18242464 is an equidigital number, since it uses as much as digits as its factorization.

18242464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570087 (or 570079 counting only the distinct ones).

The product of its digits is 12288, while the sum is 31.

The square root of 18242464 is about 4271.1197595010. The cubic root of 18242464 is about 263.2456272927.

The spelling of 18242464 in words is "eighteen million, two hundred forty-two thousand, four hundred sixty-four".