22072768 has 14 divisors (see below), whose sum is σ = 43800776. Its totient is φ = 11036352.

The previous prime is 22072759. The next prime is 22072777. The reversal of 22072768 is 86727022.

It is an interprime number because it is at equal distance from previous prime (22072759) and next prime (22072777).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172380 + ... + 172507.

Almost surely, 2^22072768 is an apocalyptic number.

It is an amenable number.

22072768 is a deficient number, since it is larger than the sum of its proper divisors (21728008).

22072768 is an equidigital number, since it uses as much as digits as its factorization.

22072768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344899 (or 344889 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 22072768 is about 4698.1664508614. The cubic root of 22072768 is about 280.5125306451.

The spelling of 22072768 in words is "twenty-two million, seventy-two thousand, seven hundred sixty-eight".