22642361 has 12 divisors (see below), whose sum is σ = 26506368. Its totient is φ = 19284552.

The previous prime is 22642349. The next prime is 22642363. The reversal of 22642361 is 16324622.

22642361 = T₄₃₅ + T₄₃₆ + ... + T₆₀₁.

It is not a de Polignac number, because 22642361 - 2¹⁸ = 22380217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22642361.

It is not an unprimeable number, because it can be changed into a prime (22642363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6800 + ... + 9566.

It is an arithmetic number, because the mean of its divisors is an integer number (2208864).

Almost surely, 2^22642361 is an apocalyptic number.

It is an amenable number.

22642361 is a deficient number, since it is larger than the sum of its proper divisors (3864007).

22642361 is a wasteful number, since it uses less digits than its factorization.

22642361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948 (or 2941 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 22642361 is about 4758.3989954606. The cubic root of 22642361 is about 282.9049654470.

Adding to 22642361 its reverse (16324622), we get a palindrome (38966983).

The spelling of 22642361 in words is "twenty-two million, six hundred forty-two thousand, three hundred sixty-one".