22146412 has 6 divisors (see below), whose sum is σ = 38756228. Its totient is φ = 11073204.

The previous prime is 22146403. The next prime is 22146413. The reversal of 22146412 is 21464122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22146413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2768298 + ... + 2768305.

Almost surely, 2^22146412 is an apocalyptic number.

It is an amenable number.

22146412 is a deficient number, since it is larger than the sum of its proper divisors (16609816).

22146412 is a wasteful number, since it uses less digits than its factorization.

22146412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5536607 (or 5536605 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 22146412 is about 4705.9974500631. The cubic root of 22146412 is about 280.8241534352.

The spelling of 22146412 in words is "twenty-two million, one hundred forty-six thousand, four hundred twelve".