22607645 has 8 divisors (see below), whose sum is σ = 27211704. Its totient is φ = 18031104.

The previous prime is 22607591. The next prime is 22607653. The reversal of 22607645 is 54670622.

It can be written as a sum of positive squares in 4 ways, for example, as 432964 + 22174681 = 658^2 + 4709^2 .

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 22607645 - 2¹⁶ = 22542109 is a prime.

It is a super-2 number, since 2×22607645² = 1022211224892050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5024 + ... + 8393.

It is an arithmetic number, because the mean of its divisors is an integer number (3401463).

Almost surely, 2^22607645 is an apocalyptic number.

It is an amenable number.

22607645 is a deficient number, since it is larger than the sum of its proper divisors (4604059).

22607645 is a wasteful number, since it uses less digits than its factorization.

22607645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13759.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 22607645 is about 4754.7497305326. The cubic root of 22607645 is about 282.7603051424.

The spelling of 22607645 in words is "twenty-two million, six hundred seven thousand, six hundred forty-five".