22441645 has 8 divisors (see below), whose sum is σ = 27182304. Its totient is φ = 17785104.

The previous prime is 22441619. The next prime is 22441663. The reversal of 22441645 is 54614422.

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 22441645 - 2¹¹ = 22439597 is a prime.

It is a super-3 number, since 3×22441645³ (a number of 23 digits) contains 333 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, 20439 + ... + 21508.

It is an arithmetic number, because the mean of its divisors is an integer number (3397788).

Almost surely, 2^22441645 is an apocalyptic number.

It is an amenable number.

22441645 is a deficient number, since it is larger than the sum of its proper divisors (4740659).

22441645 is a wasteful number, since it uses less digits than its factorization.

22441645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42059.

The product of its digits is 7680, while the sum is 28.

The square root of 22441645 is about 4737.2613396350. The cubic root of 22441645 is about 282.0665344408.

The spelling of 22441645 in words is "twenty-two million, four hundred forty-one thousand, six hundred forty-five".