28441392 has 80 divisors (see below), whose sum is σ = 85804032. Its totient is φ = 7948800.

The previous prime is 28441379. The next prime is 28441397. The reversal of 28441392 is 29314482.

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 not an unprimeable number, because it can be changed into a prime (28441397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14892 + ... + 16692.

Almost surely, 2^28441392 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 28441392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42902016).

28441392 is an abundant number, since it is smaller than the sum of its proper divisors (57362640).

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

28441392 is a wasteful number, since it uses less digits than its factorization.

28441392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866 (or 1860 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 28441392 is about 5333.0471589889. The cubic root of 28441392 is about 305.2462116550.

The spelling of 28441392 in words is "twenty-eight million, four hundred forty-one thousand, three hundred ninety-two".