28027450 has 48 divisors (see below), whose sum is σ = 57451680. Its totient is φ = 10088000.

The previous prime is 28027411. The next prime is 28027453. The reversal of 28027450 is 5472082.

It is not an unprimeable number, because it can be changed into a prime (28027453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71856 + ... + 72244.

It is an arithmetic number, because the mean of its divisors is an integer number (1196910).

Almost surely, 2^28027450 is an apocalyptic number.

28027450 is an abundant number, since it is smaller than the sum of its proper divisors (29424230).

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

28027450 is a wasteful number, since it uses less digits than its factorization.

28027450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 28027450 is about 5294.0957679286. The cubic root of 28027450 is about 303.7580961674.

It can be divided in two parts, 280 and 27450, that added together give a triangular number (27730 = T₂₃₅).

The spelling of 28027450 in words is "twenty-eight million, twenty-seven thousand, four hundred fifty".