28769232 has 20 divisors (see below), whose sum is σ = 74320640. Its totient is φ = 9589728.

The previous prime is 28769207. The next prime is 28769233. The reversal of 28769232 is 23296782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28769233) 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, 299632 + ... + 299727.

It is an arithmetic number, because the mean of its divisors is an integer number (3716032).

Almost surely, 2^28769232 is an apocalyptic number.

It is an amenable number.

28769232 is an abundant number, since it is smaller than the sum of its proper divisors (45551408).

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

28769232 is a wasteful number, since it uses less digits than its factorization.

28769232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599370 (or 599364 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 28769232 is about 5363.6957408116. The cubic root of 28769232 is about 306.4145775411.

The spelling of 28769232 in words is "twenty-eight million, seven hundred sixty-nine thousand, two hundred thirty-two".