28662832 has 40 divisors (see below), whose sum is σ = 61045200. Its totient is φ = 12929280.

The previous prime is 28662791. The next prime is 28662869. The reversal of 28662832 is 23826682.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28662791 and 28662800.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25678 + ... + 26770.

It is an arithmetic number, because the mean of its divisors is an integer number (1526130).

Almost surely, 2^28662832 is an apocalyptic number.

28662832 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 28662832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30522600).

28662832 is an abundant number, since it is smaller than the sum of its proper divisors (32382368).

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

28662832 is a wasteful number, since it uses less digits than its factorization.

28662832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 1255 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 28662832 is about 5353.7680188817. The cubic root of 28662832 is about 306.0363634574.

The spelling of 28662832 in words is "twenty-eight million, six hundred sixty-two thousand, eight hundred thirty-two".