22048609 has 16 divisors (see below), whose sum is σ = 25664256. Its totient is φ = 18720000.

The previous prime is 22048601. The next prime is 22048627. The reversal of 22048609 is 90684022.

It is a cyclic number.

It is not a de Polignac number, because 22048609 - 2³ = 22048601 is a prime.

It is a super-2 number, since 2×22048609² = 972282317669762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22048601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28984 + ... + 29734.

It is an arithmetic number, because the mean of its divisors is an integer number (1604016).

Almost surely, 2^22048609 is an apocalyptic number.

It is an amenable number.

22048609 is a deficient number, since it is larger than the sum of its proper divisors (3615647).

22048609 is a wasteful number, since it uses less digits than its factorization.

22048609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 22048609 is about 4695.5946375299. The cubic root of 22048609 is about 280.4101514569.

The spelling of 22048609 in words is "twenty-two million, forty-eight thousand, six hundred nine".