23540422 has 4 divisors (see below), whose sum is σ = 35310636. Its totient is φ = 11770210.

The previous prime is 23540371. The next prime is 23540441. The reversal of 23540422 is 22404532.

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

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 junction number, because it is equal to n+sod(n) for n = 23540393 and 23540402.

It is a congruent number.

It is an unprimeable number.

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, 5885104 + ... + 5885107.

It is an arithmetic number, because the mean of its divisors is an integer number (8827659).

Almost surely, 2^23540422 is an apocalyptic number.

23540422 is a deficient number, since it is larger than the sum of its proper divisors (11770214).

23540422 is a wasteful number, since it uses less digits than its factorization.

23540422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11770213.

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

The square root of 23540422 is about 4851.8472770688. The cubic root of 23540422 is about 286.5968512755.

Adding to 23540422 its reverse (22404532), we get a palindrome (45944954).

The spelling of 23540422 in words is "twenty-three million, five hundred forty thousand, four hundred twenty-two".