22269745 has 32 divisors (see below), whose sum is σ = 29762208. Its totient is φ = 15925248.

The previous prime is 22269721. The next prime is 22269757. The reversal of 22269745 is 54796222.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 142129 + 22127616 = 377^2 + 4704^2 .

It is a 4-Lehmer number, since φ(22269745) divides (22269745-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 22269745 - 2⁵ = 22269713 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229537 + ... + 229633.

It is an arithmetic number, because the mean of its divisors is an integer number (930069).

It is a Poulet number, since it divides 2^22269744-1.

Almost surely, 2^22269745 is an apocalyptic number.

It is an amenable number.

22269745 is a deficient number, since it is larger than the sum of its proper divisors (7492463).

22269745 is a wasteful number, since it uses less digits than its factorization.

22269745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229.

The product of its digits is 60480, while the sum is 37.

The square root of 22269745 is about 4719.0830677156. The cubic root of 22269745 is about 281.3444903908.

The spelling of 22269745 in words is "twenty-two million, two hundred sixty-nine thousand, seven hundred forty-five".