22408634 has 4 divisors (see below), whose sum is σ = 33612954. Its totient is φ = 11204316.

The previous prime is 22408627. The next prime is 22408637. The reversal of 22408634 is 43680422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21187609 + 1221025 = 4603^2 + 1105^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22408597 and 22408606.

It is not an unprimeable number, because it can be changed into a prime (22408637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5602157 + ... + 5602160.

Almost surely, 2^22408634 is an apocalyptic number.

22408634 is a deficient number, since it is larger than the sum of its proper divisors (11204320).

22408634 is a wasteful number, since it uses less digits than its factorization.

22408634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11204319.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 22408634 is about 4733.7758713315. The cubic root of 22408634 is about 281.9281627119.

The spelling of 22408634 in words is "twenty-two million, four hundred eight thousand, six hundred thirty-four".