22340254 has 4 divisors (see below), whose sum is σ = 33510384. Its totient is φ = 11170126.

The previous prime is 22340251. The next prime is 22340309. The reversal of 22340254 is 45204322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45204322 = 2 ⋅22602161.

It is a Smith number, since the sum of its digits (22) 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 (22340251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5585062 + ... + 5585065.

It is an arithmetic number, because the mean of its divisors is an integer number (8377596).

Almost surely, 2^22340254 is an apocalyptic number.

22340254 is a deficient number, since it is larger than the sum of its proper divisors (11170130).

22340254 is a wasteful number, since it uses less digits than its factorization.

22340254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11170129.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 22340254 is about 4726.5477888201. The cubic root of 22340254 is about 281.6411023719.

Adding to 22340254 its reverse (45204322), we get a palindrome (67544576).

The spelling of 22340254 in words is "twenty-two million, three hundred forty thousand, two hundred fifty-four".