28922232 has 16 divisors (see below), whose sum is σ = 72305640. Its totient is φ = 9640736.

The previous prime is 28922209. The next prime is 28922233. The reversal of 28922232 is 23222982.

It is a self number, because there is not a number n which added to its sum of digits gives 28922232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28922233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602523 + ... + 602570.

Almost surely, 2^28922232 is an apocalyptic number.

It is an amenable number.

28922232 is an abundant number, since it is smaller than the sum of its proper divisors (43383408).

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

28922232 is a wasteful number, since it uses less digits than its factorization.

28922232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205102 (or 1205098 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 28922232 is about 5377.9393823285. The cubic root of 28922232 is about 306.9568069045.

The spelling of 28922232 in words is "twenty-eight million, nine hundred twenty-two thousand, two hundred thirty-two".