22738028 has 12 divisors (see below), whose sum is σ = 39825240. Its totient is φ = 11359392.

The previous prime is 22738021. The next prime is 22738031. The reversal of 22738028 is 82083722.

It is a junction number, because it is equal to n+sod(n) for n = 22737985 and 22738003.

It is not an unprimeable number, because it can be changed into a prime (22738021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6968 + ... + 9696.

It is an arithmetic number, because the mean of its divisors is an integer number (3318770).

Almost surely, 2^22738028 is an apocalyptic number.

It is an amenable number.

22738028 is a deficient number, since it is larger than the sum of its proper divisors (17087212).

22738028 is a wasteful number, since it uses less digits than its factorization.

22738028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4816 (or 4814 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 22738028 is about 4768.4408353255. The cubic root of 22738028 is about 283.3028427012.

It can be divided in two parts, 2273 and 8028, that added together give a palindrome (10301).

The spelling of 22738028 in words is "twenty-two million, seven hundred thirty-eight thousand, twenty-eight".