28402326 has 24 divisors (see below), whose sum is σ = 63818664. Its totient is φ = 9467280.

The previous prime is 28402313. The next prime is 28402331. The reversal of 28402326 is 62320482.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28402326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28735 + ... + 29706.

It is an arithmetic number, because the mean of its divisors is an integer number (2659111).

Almost surely, 2^28402326 is an apocalyptic number.

28402326 is an abundant number, since it is smaller than the sum of its proper divisors (35416338).

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

28402326 is an equidigital number, since it uses as much as digits as its factorization.

28402326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58458 (or 58446 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 28402326 is about 5329.3832663827. The cubic root of 28402326 is about 305.1063894730.

The spelling of 28402326 in words is "twenty-eight million, four hundred two thousand, three hundred twenty-six".