28236022 has 16 divisors (see below), whose sum is σ = 43179840. Its totient is φ = 13845312.

The previous prime is 28236007. The next prime is 28236023. The reversal of 28236022 is 22063282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28236023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26818 + ... + 27850.

It is an arithmetic number, because the mean of its divisors is an integer number (2698740).

Almost surely, 2^28236022 is an apocalyptic number.

28236022 is a deficient number, since it is larger than the sum of its proper divisors (14943818).

28236022 is a wasteful number, since it uses less digits than its factorization.

28236022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 28236022 is about 5313.7578040404. The cubic root of 28236022 is about 304.5097274276.

The spelling of 28236022 in words is "twenty-eight million, two hundred thirty-six thousand, twenty-two".