22342403 has 4 divisors (see below), whose sum is σ = 23656680. Its totient is φ = 21028128.

The previous prime is 22342399. The next prime is 22342421. The reversal of 22342403 is 30424322.

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

It is a cyclic number.

It is not a de Polignac number, because 22342403 - 2² = 22342399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22342433) 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, 657113 + ... + 657146.

It is an arithmetic number, because the mean of its divisors is an integer number (5914170).

Almost surely, 2^22342403 is an apocalyptic number.

22342403 is a deficient number, since it is larger than the sum of its proper divisors (1314277).

22342403 is a wasteful number, since it uses less digits than its factorization.

22342403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314276.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 22342403 is about 4726.7751162923. The cubic root of 22342403 is about 281.6501328172.

Adding to 22342403 its reverse (30424322), we get a palindrome (52766725).

The spelling of 22342403 in words is "twenty-two million, three hundred forty-two thousand, four hundred three".