18258022 has 16 divisors (see below), whose sum is σ = 27993600. Its totient is φ = 8928520.

The previous prime is 18258007. The next prime is 18258029. The reversal of 18258022 is 22085281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18258029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 42147 + ... + 42577.

It is an arithmetic number, because the mean of its divisors is an integer number (1749600).

Almost surely, 2^18258022 is an apocalyptic number.

18258022 is a deficient number, since it is larger than the sum of its proper divisors (9735578).

18258022 is a wasteful number, since it uses less digits than its factorization.

18258022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 18258022 is about 4272.9406735877. The cubic root of 18258022 is about 263.3204419618.

The spelling of 18258022 in words is "eighteen million, two hundred fifty-eight thousand, twenty-two".