22039449 has 32 divisors (see below), whose sum is σ = 32640000. Its totient is φ = 13172544.

The previous prime is 22039421. The next prime is 22039471. The reversal of 22039449 is 94493022.

It is not a de Polignac number, because 22039449 - 2⁵ = 22039417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22039489) 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 31 ways as a sum of consecutive naturals, for example, 110652 + ... + 110850.

It is an arithmetic number, because the mean of its divisors is an integer number (1020000).

Almost surely, 2^22039449 is an apocalyptic number.

22039449 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

22039449 is a deficient number, since it is larger than the sum of its proper divisors (10600551).

22039449 is a wasteful number, since it uses less digits than its factorization.

22039449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 22039449 is about 4694.6191538825. The cubic root of 22039449 is about 280.3713143468.

The spelling of 22039449 in words is "twenty-two million, thirty-nine thousand, four hundred forty-nine".