18088442 has 16 divisors (see below), whose sum is σ = 29979072. Its totient is φ = 8141760.

The previous prime is 18088429. The next prime is 18088501. The reversal of 18088442 is 24488081.

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, 10784 + ... + 12347.

It is an arithmetic number, because the mean of its divisors is an integer number (1873692).

Almost surely, 2^18088442 is an apocalyptic number.

18088442 is a deficient number, since it is larger than the sum of its proper divisors (11890630).

18088442 is a wasteful number, since it uses less digits than its factorization.

18088442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23173.

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 18088442 is about 4253.0509049387. The cubic root of 18088442 is about 262.5026672443.

The spelling of 18088442 in words is "eighteen million, eighty-eight thousand, four hundred forty-two".