28333632 has 28 divisors (see below), whose sum is σ = 74966576. Its totient is φ = 9444480.

The previous prime is 28333619. The next prime is 28333637. The reversal of 28333632 is 23633382.

It is a super-2 number, since 2×28333632² = 1605589404622848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 28333632.

It is not an unprimeable number, because it can be changed into a prime (28333637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73594 + ... + 73977.

Almost surely, 2^28333632 is an apocalyptic number.

It is an amenable number.

28333632 is an abundant number, since it is smaller than the sum of its proper divisors (46632944).

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

28333632 is a wasteful number, since it uses less digits than its factorization.

28333632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147586 (or 147576 counting only the distinct ones).

The product of its digits is 15552, while the sum is 30.

The square root of 28333632 is about 5322.9345289981. The cubic root of 28333632 is about 304.8602136466.

The spelling of 28333632 in words is "twenty-eight million, three hundred thirty-three thousand, six hundred thirty-two".