22007449 has 8 divisors (see below), whose sum is σ = 22348800. Its totient is φ = 21668976.

The previous prime is 22007441. The next prime is 22007501. The reversal of 22007449 is 94470022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22007449 - 2³ = 22007441 is a prime.

It is a super-2 number, since 2×22007449² = 968655622975202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22007441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18342 + ... + 19504.

It is an arithmetic number, because the mean of its divisors is an integer number (2793600).

Almost surely, 2^22007449 is an apocalyptic number.

It is an amenable number.

22007449 is a deficient number, since it is larger than the sum of its proper divisors (341351).

22007449 is a wasteful number, since it uses less digits than its factorization.

22007449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 22007449 is about 4691.2097586870. The cubic root of 22007449 is about 280.2355543317.

The spelling of 22007449 in words is "twenty-two million, seven thousand, four hundred forty-nine".