28169682 has 16 divisors (see below), whose sum is σ = 56391552. Its totient is φ = 9381200.

The previous prime is 28169671. The next prime is 28169683. The reversal of 28169682 is 28696182.

It is a super-2 number, since 2×28169682² = 1587061967962248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (28169683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10807 + ... + 13157.

It is an arithmetic number, because the mean of its divisors is an integer number (3524472).

Almost surely, 2^28169682 is an apocalyptic number.

28169682 is an abundant number, since it is smaller than the sum of its proper divisors (28221870).

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

28169682 is a wasteful number, since it uses less digits than its factorization.

28169682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353.

The product of its digits is 82944, while the sum is 42.

The square root of 28169682 is about 5307.5118464305. The cubic root of 28169682 is about 304.2710604657.

The spelling of 28169682 in words is "twenty-eight million, one hundred sixty-nine thousand, six hundred eighty-two".