28162296 has 64 divisors (see below), whose sum is σ = 78698400. Its totient is φ = 9331200.

The previous prime is 28162273. The next prime is 28162307. The reversal of 28162296 is 69226182.

It is a happy number.

28162296 is a `hidden beast` number, since 28 + 1 + 622 + 9 + 6 = 666.

It is a super-2 number, since 2×28162296² = 1586229831983232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 28162296.

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, 51786 + ... + 52326.

Almost surely, 2^28162296 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 28162296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39349200).

28162296 is an abundant number, since it is smaller than the sum of its proper divisors (50536104).

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

28162296 is a wasteful number, since it uses less digits than its factorization.

28162296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 787 counting only the distinct ones).

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

The square root of 28162296 is about 5306.8159945489. The cubic root of 28162296 is about 304.2444651768.

The spelling of 28162296 in words is "twenty-eight million, one hundred sixty-two thousand, two hundred ninety-six".