22747222 has 8 divisors (see below), whose sum is σ = 34200936. Its totient is φ = 11346912.

The previous prime is 22747217. The next prime is 22747261. The reversal of 22747222 is 22274722.

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

It is a super-2 number, since 2×22747222² = 1034872217434568, which contains 22 as substring.

It is a congruent number.

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, 12268 + ... + 13999.

It is an arithmetic number, because the mean of its divisors is an integer number (4275117).

Almost surely, 2^22747222 is an apocalyptic number.

22747222 is a deficient number, since it is larger than the sum of its proper divisors (11453714).

22747222 is a wasteful number, since it uses less digits than its factorization.

22747222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26702.

The product of its digits is 6272, while the sum is 28.

The square root of 22747222 is about 4769.4047846665. The cubic root of 22747222 is about 283.3410215522.

The spelling of 22747222 in words is "twenty-two million, seven hundred forty-seven thousand, two hundred twenty-two".