28237032 has 64 divisors (see below), whose sum is σ = 80985600. Its totient is φ = 9106560.

The previous prime is 28237009. The next prime is 28237043. The reversal of 28237032 is 23073282.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 28236987 and 28237005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4588 + ... + 8804.

It is an arithmetic number, because the mean of its divisors is an integer number (1265400).

Almost surely, 2^28237032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28237032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40492800).

28237032 is an abundant number, since it is smaller than the sum of its proper divisors (52748568).

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

28237032 is a wasteful number, since it uses less digits than its factorization.

28237032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4263 (or 4253 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 28237032 is about 5313.8528395130. The cubic root of 28237032 is about 304.5133581463.

The spelling of 28237032 in words is "twenty-eight million, two hundred thirty-seven thousand, thirty-two".