22146312 has 32 divisors (see below), whose sum is σ = 55656000. Its totient is φ = 7343424.

The previous prime is 22146287. The next prime is 22146329. The reversal of 22146312 is 21364122.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2458 + ... + 7094.

It is an arithmetic number, because the mean of its divisors is an integer number (1739250).

Almost surely, 2^22146312 is an apocalyptic number.

It is an amenable number.

22146312 is an abundant number, since it is smaller than the sum of its proper divisors (33509688).

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

22146312 is a wasteful number, since it uses less digits than its factorization.

22146312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4845 (or 4841 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 22146312 is about 4705.9868253109. The cubic root of 22146312 is about 280.8237307563.

The spelling of 22146312 in words is "twenty-two million, one hundred forty-six thousand, three hundred twelve".