22668506 has 8 divisors (see below), whose sum is σ = 38860320. Its totient is φ = 9715068.

The previous prime is 22668491. The next prime is 22668511. The reversal of 22668506 is 60586622.

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

It is a super-2 number, since 2×22668506² = 1027722328544072, which contains 22 as substring.

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, 809576 + ... + 809603.

It is an arithmetic number, because the mean of its divisors is an integer number (4857540).

Almost surely, 2^22668506 is an apocalyptic number.

22668506 is a deficient number, since it is larger than the sum of its proper divisors (16191814).

22668506 is a wasteful number, since it uses less digits than its factorization.

22668506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619188.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 22668506 is about 4761.1454504142. The cubic root of 22668506 is about 283.0138131246.

The spelling of 22668506 in words is "twenty-two million, six hundred sixty-eight thousand, five hundred six".