22402234 has 4 divisors (see below), whose sum is σ = 33603354. Its totient is φ = 11201116.

The previous prime is 22402223. The next prime is 22402271. The reversal of 22402234 is 43220422.

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., 15976009 + 6426225 = 3997^2 + 2535^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600557 + ... + 5600560.

Almost surely, 2^22402234 is an apocalyptic number.

22402234 is a deficient number, since it is larger than the sum of its proper divisors (11201120).

22402234 is a wasteful number, since it uses less digits than its factorization.

22402234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11201119.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 22402234 is about 4733.0998299212. The cubic root of 22402234 is about 281.9013202005.

Adding to 22402234 its reverse (43220422), we get a palindrome (65622656).

The spelling of 22402234 in words is "twenty-two million, four hundred two thousand, two hundred thirty-four".