22642370 has 16 divisors (see below), whose sum is σ = 40825080. Its totient is φ = 9041664.

The previous prime is 22642363. The next prime is 22642379. The reversal of 22642370 is 7324622.

It can be written as a sum of positive squares in 4 ways, for example, as 22401289 + 241081 = 4733^2 + 491^2 .

It is not an unprimeable number, because it can be changed into a prime (22642379) 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, 5786 + ... + 8874.

Almost surely, 2^22642370 is an apocalyptic number.

22642370 is a deficient number, since it is larger than the sum of its proper divisors (18182710).

22642370 is a wasteful number, since it uses less digits than its factorization.

22642370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 22642370 is about 4758.3999411567. The cubic root of 22642370 is about 282.9050029305.

Adding to 22642370 its reverse (7324622), we get a palindrome (29966992).

The spelling of 22642370 in words is "twenty-two million, six hundred forty-two thousand, three hundred seventy".