22532782 has 4 divisors (see below), whose sum is σ = 33799176. Its totient is φ = 11266390.

The previous prime is 22532771. The next prime is 22532789. The reversal of 22532782 is 28723522.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22532789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5633194 + ... + 5633197.

It is an arithmetic number, because the mean of its divisors is an integer number (8449794).

Almost surely, 2^22532782 is an apocalyptic number.

22532782 is a deficient number, since it is larger than the sum of its proper divisors (11266394).

22532782 is a wasteful number, since it uses less digits than its factorization.

22532782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11266393.

The product of its digits is 13440, while the sum is 31.

The square root of 22532782 is about 4746.8707587209. The cubic root of 22532782 is about 282.4478489892.

The spelling of 22532782 in words is "twenty-two million, five hundred thirty-two thousand, seven hundred eighty-two".