22282784 has 24 divisors (see below), whose sum is σ = 46450908. Its totient is φ = 10485760.

The previous prime is 22282781. The next prime is 22282807. The reversal of 22282784 is 48728222.

It can be written as a sum of positive squares in 2 ways, for example, as 19114384 + 3168400 = 4372^2 + 1780^2 .

It is not an unprimeable number, because it can be changed into a prime (22282781) 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, 19937 + ... + 21024.

Almost surely, 2^22282784 is an apocalyptic number.

It is an amenable number.

22282784 is an abundant number, since it is smaller than the sum of its proper divisors (24168124).

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

22282784 is a wasteful number, since it uses less digits than its factorization.

22282784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40988 (or 40980 counting only the distinct ones).

The product of its digits is 28672, while the sum is 35.

The square root of 22282784 is about 4720.4643839351. The cubic root of 22282784 is about 281.3993890149.

The spelling of 22282784 in words is "twenty-two million, two hundred eighty-two thousand, seven hundred eighty-four".