28124322 has 32 divisors (see below), whose sum is σ = 58451712. Its totient is φ = 9014544.

The previous prime is 28124309. The next prime is 28124333. The reversal of 28124322 is 22342182.

It is a junction number, because it is equal to n+sod(n) for n = 28124292 and 28124301.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16473 + ... + 18099.

It is an arithmetic number, because the mean of its divisors is an integer number (1826616).

Almost surely, 2^28124322 is an apocalyptic number.

28124322 is an abundant number, since it is smaller than the sum of its proper divisors (30327390).

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

28124322 is a wasteful number, since it uses less digits than its factorization.

28124322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742.

The product of its digits is 1536, while the sum is 24.

The square root of 28124322 is about 5303.2369360608. The cubic root of 28124322 is about 304.1076560654.

The spelling of 28124322 in words is "twenty-eight million, one hundred twenty-four thousand, three hundred twenty-two".