28740084 has 48 divisors (see below), whose sum is σ = 71023680. Its totient is φ = 9020160.

The previous prime is 28740079. The next prime is 28740091. The reversal of 28740084 is 48004782.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 52854 + ... + 53394.

It is an arithmetic number, because the mean of its divisors is an integer number (1479660).

Almost surely, 2^28740084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28740084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35511840).

28740084 is an abundant number, since it is smaller than the sum of its proper divisors (42283596).

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

28740084 is a wasteful number, since it uses less digits than its factorization.

28740084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 28740084 is about 5360.9778958694. The cubic root of 28740084 is about 306.3110596564.

The spelling of 28740084 in words is "twenty-eight million, seven hundred forty thousand, eighty-four".