18124442 has 32 divisors (see below), whose sum is σ = 33271680. Its totient is φ = 7231680.

The previous prime is 18124439. The next prime is 18124451. The reversal of 18124442 is 24442181.

It is a super-2 number, since 2×18124442² = 656990795622728, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 15668 + ... + 16784.

It is an arithmetic number, because the mean of its divisors is an integer number (1039740).

Almost surely, 2^18124442 is an apocalyptic number.

18124442 is a deficient number, since it is larger than the sum of its proper divisors (15147238).

18124442 is a wasteful number, since it uses less digits than its factorization.

18124442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206.

The product of its digits is 2048, while the sum is 26.

The square root of 18124442 is about 4257.2810572007. The cubic root of 18124442 is about 262.6766979629.

The spelling of 18124442 in words is "eighteen million, one hundred twenty-four thousand, four hundred forty-two".