22369645 has 8 divisors (see below), whose sum is σ = 27569304. Its totient is φ = 17411904.

The previous prime is 22369601. The next prime is 22369661. The reversal of 22369645 is 54696322.

It can be written as a sum of positive squares in 4 ways, for example, as 6853924 + 15515721 = 2618^2 + 3939^2 .

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

It is not a de Polignac number, because 22369645 - 2¹³ = 22361453 is a prime.

It is a super-3 number, since 3×22369645³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a plaindrome in base 16.

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, 60274 + ... + 60643.

It is an arithmetic number, because the mean of its divisors is an integer number (3446163).

Almost surely, 2^22369645 is an apocalyptic number.

It is an amenable number.

22369645 is a deficient number, since it is larger than the sum of its proper divisors (5199659).

22369645 is a wasteful number, since it uses less digits than its factorization.

22369645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120959.

The product of its digits is 77760, while the sum is 37.

The square root of 22369645 is about 4729.6559071459. The cubic root of 22369645 is about 281.7645579396.

It can be divided in two parts, 2236 and 9645, that added together give a square (11881 = 109²).

The spelling of 22369645 in words is "twenty-two million, three hundred sixty-nine thousand, six hundred forty-five".