22949919 has 8 divisors (see below), whose sum is σ = 33999920. Its totient is φ = 15299928.

The previous prime is 22949897. The next prime is 22949923. The reversal of 22949919 is 91994922.

It is not a de Polignac number, because 22949919 - 2¹¹ = 22947871 is a prime.

It is a super-2 number, since 2×22949919² = 1053397564213122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22949989) 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 7 ways as a sum of consecutive naturals, for example, 424972 + ... + 425025.

It is an arithmetic number, because the mean of its divisors is an integer number (4249990).

Almost surely, 2^22949919 is an apocalyptic number.

22949919 is a deficient number, since it is larger than the sum of its proper divisors (11050001).

22949919 is an equidigital number, since it uses as much as digits as its factorization.

22949919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850006 (or 850000 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 22949919 is about 4790.6073727660. The cubic root of 22949919 is about 284.1801368254.

The spelling of 22949919 in words is "twenty-two million, nine hundred forty-nine thousand, nine hundred nineteen".