22147708 has 24 divisors (see below), whose sum is σ = 43316784. Its totient is φ = 9820800.

The previous prime is 22147681. The next prime is 22147717. The reversal of 22147708 is 80774122.

It is a self number, because there is not a number n which added to its sum of digits gives 22147708.

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, 4335 + ... + 7942.

It is an arithmetic number, because the mean of its divisors is an integer number (1804866).

Almost surely, 2^22147708 is an apocalyptic number.

It is an amenable number.

22147708 is a deficient number, since it is larger than the sum of its proper divisors (21169076).

22147708 is a wasteful number, since it uses less digits than its factorization.

22147708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12333 (or 12331 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 22147708 is about 4706.1351446808. The cubic root of 22147708 is about 280.8296312375.

The spelling of 22147708 in words is "twenty-two million, one hundred forty-seven thousand, seven hundred eight".