22147964 has 12 divisors (see below), whose sum is σ = 38929800. Its totient is φ = 11025168.

The previous prime is 22147963. The next prime is 22147997. The reversal of 22147964 is 46974122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22147963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11174 + ... + 13005.

It is an arithmetic number, because the mean of its divisors is an integer number (3244150).

Almost surely, 2^22147964 is an apocalyptic number.

It is an amenable number.

22147964 is a deficient number, since it is larger than the sum of its proper divisors (16781836).

22147964 is a wasteful number, since it uses less digits than its factorization.

22147964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24412 (or 24410 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 22147964 is about 4706.1623431412. The cubic root of 22147964 is about 280.8307132473.

The spelling of 22147964 in words is "twenty-two million, one hundred forty-seven thousand, nine hundred sixty-four".