28393182 has 48 divisors (see below), whose sum is σ = 65866320. Its totient is φ = 8812800.

The previous prime is 28393181. The next prime is 28393187. The reversal of 28393182 is 28139382.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28393181) 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, 20182 + ... + 21542.

It is an arithmetic number, because the mean of its divisors is an integer number (1372215).

Almost surely, 2^28393182 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28393182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32933160).

28393182 is an abundant number, since it is smaller than the sum of its proper divisors (37473138).

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

28393182 is a wasteful number, since it uses less digits than its factorization.

28393182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449 (or 1446 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 28393182 is about 5328.5253119414. The cubic root of 28393182 is about 305.0736434193.

The spelling of 28393182 in words is "twenty-eight million, three hundred ninety-three thousand, one hundred eighty-two".