22165628 has 48 divisors (see below), whose sum is σ = 43092000. Its totient is φ = 9934848.

The previous prime is 22165613. The next prime is 22165643. The reversal of 22165628 is 82656122.

It is an interprime number because it is at equal distance from previous prime (22165613) and next prime (22165643).

It is a junction number, because it is equal to n+sod(n) for n = 22165594 and 22165603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196100 + ... + 196212.

It is an arithmetic number, because the mean of its divisors is an integer number (897750).

Almost surely, 2^22165628 is an apocalyptic number.

It is an amenable number.

22165628 is a deficient number, since it is larger than the sum of its proper divisors (20926372).

22165628 is a wasteful number, since it uses less digits than its factorization.

22165628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 252 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 22165628 is about 4708.0386574454. The cubic root of 22165628 is about 280.9053517940.

The spelling of 22165628 in words is "twenty-two million, one hundred sixty-five thousand, six hundred twenty-eight".