28574832 has 160 divisors (see below), whose sum is σ = 90994176. Its totient is φ = 7603200.

The previous prime is 28574797. The next prime is 28574837. The reversal of 28574832 is 23847582.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28574837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157782 + ... + 157962.

Almost surely, 2^28574832 is an apocalyptic number.

28574832 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28574832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45497088).

28574832 is an abundant number, since it is smaller than the sum of its proper divisors (62419344).

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

28574832 is a wasteful number, since it uses less digits than its factorization.

28574832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 233 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 28574832 is about 5345.5431903596. The cubic root of 28574832 is about 305.7228470041.

The spelling of 28574832 in words is "twenty-eight million, five hundred seventy-four thousand, eight hundred thirty-two".