22605645 has 32 divisors (see below), whose sum is σ = 37768320. Its totient is φ = 11531520.

The previous prime is 22605641. The next prime is 22605647. The reversal of 22605645 is 54650622.

It is not a de Polignac number, because 22605645 - 2² = 22605641 is a prime.

It is a super-3 number, since 3×22605645³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22605641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68130 + ... + 68460.

It is an arithmetic number, because the mean of its divisors is an integer number (1180260).

Almost surely, 2^22605645 is an apocalyptic number.

It is an amenable number.

22605645 is a deficient number, since it is larger than the sum of its proper divisors (15162675).

22605645 is a wasteful number, since it uses less digits than its factorization.

22605645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 22605645 is about 4754.5394098693. The cubic root of 22605645 is about 282.7519667051.

The spelling of 22605645 in words is "twenty-two million, six hundred five thousand, six hundred forty-five".