22395613 has 8 divisors (see below), whose sum is σ = 23778360. Its totient is φ = 21020160.

The previous prime is 22395589. The next prime is 22395617. The reversal of 22395613 is 31659322.

It can be written as a sum of positive squares in 4 ways, for example, as 14341369 + 8054244 = 3787^2 + 2838^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-22395613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22395617) 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, 5343 + ... + 8563.

It is an arithmetic number, because the mean of its divisors is an integer number (2972295).

It is a vampire number, since it can be written as 3221 ⋅ 6953 (with its own digits).

Almost surely, 2^22395613 is an apocalyptic number.

It is an amenable number.

22395613 is a deficient number, since it is larger than the sum of its proper divisors (1382747).

22395613 is a wasteful number, since it uses less digits than its factorization.

22395613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647.

The product of its digits is 9720, while the sum is 31.

The square root of 22395613 is about 4732.4003423210. The cubic root of 22395613 is about 281.8735454028.

The spelling of 22395613 in words is "twenty-two million, three hundred ninety-five thousand, six hundred thirteen".