22320949 has 16 divisors (see below), whose sum is σ = 27278208. Its totient is φ = 17828352.

The previous prime is 22320943. The next prime is 22320967. The reversal of 22320949 is 94902322.

It is a cyclic number.

It is not a de Polignac number, because 22320949 - 2⁵ = 22320917 is a prime.

It is a super-3 number, since 3×22320949³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22320949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22320943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11857 + ... + 13609.

It is an arithmetic number, because the mean of its divisors is an integer number (1704888).

Almost surely, 2^22320949 is an apocalyptic number.

It is an amenable number.

22320949 is a deficient number, since it is larger than the sum of its proper divisors (4957259).

22320949 is a wasteful number, since it uses less digits than its factorization.

22320949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 22320949 is about 4724.5051592733. The cubic root of 22320949 is about 281.5599536623.

The spelling of 22320949 in words is "twenty-two million, three hundred twenty thousand, nine hundred forty-nine".