22445629 has 8 divisors (see below), whose sum is σ = 22702680. Its totient is φ = 22190400.

The previous prime is 22445617. The next prime is 22445639. The reversal of 22445629 is 92654422.

It can be written as a sum of positive squares in 4 ways, for example, as 1988100 + 20457529 = 1410^2 + 4523^2 .

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 22445629 - 2⁵ = 22445597 is a prime.

It is a super-2 number, since 2×22445629² = 1007612522411282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22445594 and 22445603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22445639) 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, 48459 + ... + 48919.

It is an arithmetic number, because the mean of its divisors is an integer number (2837835).

Almost surely, 2^22445629 is an apocalyptic number.

It is an amenable number.

22445629 is a deficient number, since it is larger than the sum of its proper divisors (257051).

22445629 is a wasteful number, since it uses less digits than its factorization.

22445629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911.

The product of its digits is 34560, while the sum is 34.

The square root of 22445629 is about 4737.6818170916. The cubic root of 22445629 is about 282.0832249371.

The spelling of 22445629 in words is "twenty-two million, four hundred forty-five thousand, six hundred twenty-nine".