22668147 has 16 divisors (see below), whose sum is σ = 34298880. Its totient is φ = 14789736.

The previous prime is 22668143. The next prime is 22668167. The reversal of 22668147 is 74186622.

It is not a de Polignac number, because 22668147 - 2² = 22668143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22668143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7663 + ... + 10200.

It is an arithmetic number, because the mean of its divisors is an integer number (2143680).

Almost surely, 2^22668147 is an apocalyptic number.

22668147 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22668147 is a deficient number, since it is larger than the sum of its proper divisors (11630733).

22668147 is a wasteful number, since it uses less digits than its factorization.

22668147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17919 (or 17913 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 22668147 is about 4761.1077492533. The cubic root of 22668147 is about 283.0123190915.

The spelling of 22668147 in words is "twenty-two million, six hundred sixty-eight thousand, one hundred forty-seven".