28444732 has 12 divisors (see below), whose sum is σ = 51384256. Its totient is φ = 13763520.

The previous prime is 28444709. The next prime is 28444739. The reversal of 28444732 is 23744482.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28444739) 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, 114573 + ... + 114820.

Almost surely, 2^28444732 is an apocalyptic number.

It is an amenable number.

28444732 is a deficient number, since it is larger than the sum of its proper divisors (22939524).

28444732 is a wasteful number, since it uses less digits than its factorization.

28444732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229428 (or 229426 counting only the distinct ones).

The product of its digits is 43008, while the sum is 34.

The square root of 28444732 is about 5333.3602915985. The cubic root of 28444732 is about 305.2581599970.

The spelling of 28444732 in words is "twenty-eight million, four hundred forty-four thousand, seven hundred thirty-two".