28032360 has 64 divisors (see below), whose sum is σ = 85190400. Its totient is φ = 7378176.

The previous prime is 28032359. The next prime is 28032409. The reversal of 28032360 is 6323082.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 28032360.

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, 8002 + ... + 10958.

It is an arithmetic number, because the mean of its divisors is an integer number (1331100).

Almost surely, 2^28032360 is an apocalyptic number.

28032360 is a gapful number since it is divisible by the number (20) 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 28032360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42595200).

28032360 is an abundant number, since it is smaller than the sum of its proper divisors (57158040).

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

28032360 is a wasteful number, since it uses less digits than its factorization.

28032360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050 (or 3046 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 28032360 is about 5294.5594717597. The cubic root of 28032360 is about 303.7758331261.

It can be divided in two parts, 280 and 32360, that added together give a triangular number (32640 = T₂₅₅).

The spelling of 28032360 in words is "twenty-eight million, thirty-two thousand, three hundred sixty".