22728024 has 48 divisors (see below), whose sum is σ = 67153320. Its totient is φ = 6887040.

The previous prime is 22728007. The next prime is 22728059. The reversal of 22728024 is 42082722.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13557 + ... + 15140.

Almost surely, 2^22728024 is an apocalyptic number.

22728024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22728024 is an abundant number, since it is smaller than the sum of its proper divisors (44425296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22728024 is a wasteful number, since it uses less digits than its factorization.

22728024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28720 (or 28713 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 22728024 is about 4767.3917397252. The cubic root of 22728024 is about 283.2612885643.

It can be divided in two parts, 2272 and 8024, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 22728024 in words is "twenty-two million, seven hundred twenty-eight thousand, twenty-four".