22783234 has 4 divisors (see below), whose sum is σ = 34174854. Its totient is φ = 11391616.

The previous prime is 22783219. The next prime is 22783253. The reversal of 22783234 is 43238722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43238722 = 2 ⋅21619361.

It can be written as a sum of positive squares in only one way, i.e., 13801225 + 8982009 = 3715^2 + 2997^2 .

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 junction number, because it is equal to n+sod(n) for n = 22783196 and 22783205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5695807 + ... + 5695810.

Almost surely, 2^22783234 is an apocalyptic number.

22783234 is a deficient number, since it is larger than the sum of its proper divisors (11391620).

22783234 is a wasteful number, since it uses less digits than its factorization.

22783234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11391619.

The product of its digits is 16128, while the sum is 31.

The square root of 22783234 is about 4773.1786054997. The cubic root of 22783234 is about 283.4904653977.

The spelling of 22783234 in words is "twenty-two million, seven hundred eighty-three thousand, two hundred thirty-four".