22329999 has 14 divisors (see below), whose sum is σ = 33480776. Its totient is φ = 14886180.

The previous prime is 22329991. The next prime is 22330003. The reversal of 22329999 is 99992322.

It is not a de Polignac number, because 22329999 - 2³ = 22329991 is a prime.

It is a super-5 number, since 5×22329999⁵ (a number of 38 digits) contains 55555 as substring.

It is a Duffinian number.

22329999 is a modest number, since divided by 9999 gives 2232 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22329991) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 14587 + ... + 16044.

It is an arithmetic number, because the mean of its divisors is an integer number (2391484).

Almost surely, 2^22329999 is an apocalyptic number.

22329999 is a deficient number, since it is larger than the sum of its proper divisors (11150777).

22329999 is an frugal number, since it uses more digits than its factorization.

22329999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30649 (or 30634 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 22329999 is about 4725.4628344745. The cubic root of 22329999 is about 281.5980012274.

The spelling of 22329999 in words is "twenty-two million, three hundred twenty-nine thousand, nine hundred ninety-nine".