22340436 has 24 divisors (see below), whose sum is σ = 52225824. Its totient is φ = 7432800.

The previous prime is 22340419. The next prime is 22340441. The reversal of 22340436 is 63404322.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6411 + ... + 9261.

It is an arithmetic number, because the mean of its divisors is an integer number (2176076).

Almost surely, 2^22340436 is an apocalyptic number.

It is an amenable number.

22340436 is an abundant number, since it is smaller than the sum of its proper divisors (29885388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22340436 is a wasteful number, since it uses less digits than its factorization.

22340436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3511 (or 3509 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 22340436 is about 4726.5670417334. The cubic root of 22340436 is about 281.6418671878.

Adding to 22340436 its reverse (63404322), we get a palindrome (85744758).

The spelling of 22340436 in words is "twenty-two million, three hundred forty thousand, four hundred thirty-six".