22728850 has 12 divisors (see below), whose sum is σ = 42275754. Its totient is φ = 9091520.

The previous prime is 22728821. The next prime is 22728851. The reversal of 22728850 is 5882722.

It can be written as a sum of positive squares in 3 ways, for example, as 11175649 + 11553201 = 3343^2 + 3399^2 .

It is not an unprimeable number, because it can be changed into a prime (22728851) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 227239 + ... + 227338.

Almost surely, 2^22728850 is an apocalyptic number.

22728850 is a deficient number, since it is larger than the sum of its proper divisors (19546904).

22728850 is a wasteful number, since it uses less digits than its factorization.

22728850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454589 (or 454584 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 22728850 is about 4767.4783691172. The cubic root of 22728850 is about 283.2647200254.

The spelling of 22728850 in words is "twenty-two million, seven hundred twenty-eight thousand, eight hundred fifty".