22666642 has 8 divisors (see below), whose sum is σ = 35096832. Its totient is φ = 10967700.

The previous prime is 22666621. The next prime is 22666663. The reversal of 22666642 is 24666622.

It is an interprime number because it is at equal distance from previous prime (22666621) and next prime (22666663).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22666598 and 22666607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182734 + ... + 182857.

It is an arithmetic number, because the mean of its divisors is an integer number (4387104).

Almost surely, 2^22666642 is an apocalyptic number.

22666642 is a deficient number, since it is larger than the sum of its proper divisors (12430190).

22666642 is a wasteful number, since it uses less digits than its factorization.

22666642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365624.

The product of its digits is 41472, while the sum is 34.

The square root of 22666642 is about 4760.9496951764. The cubic root of 22666642 is about 283.0060556334.

The spelling of 22666642 in words is "twenty-two million, six hundred sixty-six thousand, six hundred forty-two".