18333332 has 6 divisors (see below), whose sum is σ = 32083338. Its totient is φ = 9166664.

The previous prime is 18333331. The next prime is 18333379. The reversal of 18333332 is 23333381.

It can be written as a sum of positive squares in only one way, i.e., 14776336 + 3556996 = 3844^2 + 1886^2 .

It is a super-2 number, since 2×18333332² = 672222124444448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18333331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2291663 + ... + 2291670.

It is an arithmetic number, because the mean of its divisors is an integer number (5347223).

Almost surely, 2^18333332 is an apocalyptic number.

It is an amenable number.

18333332 is a deficient number, since it is larger than the sum of its proper divisors (13750006).

18333332 is a wasteful number, since it uses less digits than its factorization.

18333332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583337 (or 4583335 counting only the distinct ones).

The product of its digits is 3888, while the sum is 26.

The square root of 18333332 is about 4281.7440371886. The cubic root of 18333332 is about 263.6819900565.

The spelling of 18333332 in words is "eighteen million, three hundred thirty-three thousand, three hundred thirty-two".