28322634 has 16 divisors (see below), whose sum is σ = 56701440. Its totient is φ = 9431520.

The previous prime is 28322627. The next prime is 28322639. The reversal of 28322634 is 43622382.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28322639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7222 + ... + 10430.

It is an arithmetic number, because the mean of its divisors is an integer number (3543840).

Almost surely, 2^28322634 is an apocalyptic number.

28322634 is an abundant number, since it is smaller than the sum of its proper divisors (28378806).

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

28322634 is a wasteful number, since it uses less digits than its factorization.

28322634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685.

The product of its digits is 13824, while the sum is 30.

The square root of 28322634 is about 5321.9013519606. The cubic root of 28322634 is about 304.8207636326.

The spelling of 28322634 in words is "twenty-eight million, three hundred twenty-two thousand, six hundred thirty-four".