18058822 has 8 divisors (see below), whose sum is σ = 28022400. Its totient is φ = 8718024.

The previous prime is 18058787. The next prime is 18058823. The reversal of 18058822 is 22885081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18058822² = 652242104055368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18058823) 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 3 ways as a sum of consecutive naturals, for example, 155622 + ... + 155737.

It is an arithmetic number, because the mean of its divisors is an integer number (3502800).

Almost surely, 2^18058822 is an apocalyptic number.

18058822 is a deficient number, since it is larger than the sum of its proper divisors (9963578).

18058822 is a wasteful number, since it uses less digits than its factorization.

18058822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311390.

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 18058822 is about 4249.5672720878. The cubic root of 18058822 is about 262.3593054053.

The spelling of 18058822 in words is "eighteen million, fifty-eight thousand, eight hundred twenty-two".