22335728 has 10 divisors (see below), whose sum is σ = 43275504. Its totient is φ = 11167856.

The previous prime is 22335667. The next prime is 22335743. The reversal of 22335728 is 82753322.

It is a junction number, because it is equal to n+sod(n) for n = 22335694 and 22335703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697976 + ... + 698007.

Almost surely, 2^22335728 is an apocalyptic number.

It is an amenable number.

22335728 is a deficient number, since it is larger than the sum of its proper divisors (20939776).

22335728 is a wasteful number, since it uses less digits than its factorization.

22335728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395991 (or 1395985 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 22335728 is about 4726.0689796066. The cubic root of 22335728 is about 281.6220814942.

The spelling of 22335728 in words is "twenty-two million, three hundred thirty-five thousand, seven hundred twenty-eight".