22819234 has 4 divisors (see below), whose sum is σ = 34228854. Its totient is φ = 11409616.

The previous prime is 22819231. The next prime is 22819249. The reversal of 22819234 is 43291822.

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

It can be written as a sum of positive squares in only one way, i.e., 13801225 + 9018009 = 3715^2 + 3003^2 .

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 = 22819196 and 22819205.

It is not an unprimeable number, because it can be changed into a prime (22819231) by changing a digit.

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, 5704807 + ... + 5704810.

Almost surely, 2^22819234 is an apocalyptic number.

22819234 is a deficient number, since it is larger than the sum of its proper divisors (11409620).

22819234 is a wasteful number, since it uses less digits than its factorization.

22819234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11409619.

The product of its digits is 6912, while the sum is 31.

The square root of 22819234 is about 4776.9481889591. The cubic root of 22819234 is about 283.6397021291.

The spelling of 22819234 in words is "twenty-two million, eight hundred nineteen thousand, two hundred thirty-four".