22427402 has 8 divisors (see below), whose sum is σ = 34550436. Its totient is φ = 10910592.

The previous prime is 22427399. The next prime is 22427417. The reversal of 22427402 is 20472422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21893041 + 534361 = 4679^2 + 731^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151463 + ... + 151610.

Almost surely, 2^22427402 is an apocalyptic number.

22427402 is a deficient number, since it is larger than the sum of its proper divisors (12123034).

22427402 is a wasteful number, since it uses less digits than its factorization.

22427402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303112.

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 22427402 is about 4735.7578063072. The cubic root of 22427402 is about 282.0068489191.

Adding to 22427402 its reverse (20472422), we get a palindrome (42899824).

The spelling of 22427402 in words is "twenty-two million, four hundred twenty-seven thousand, four hundred two".