22313943 has 6 divisors (see below), whose sum is σ = 32231264. Its totient is φ = 14875956.

The previous prime is 22313917. The next prime is 22313971. The reversal of 22313943 is 34931322.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-22313943 is a prime.

It is a super-3 number, since 3×22313943³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22313903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1239655 + ... + 1239672.

Almost surely, 2^22313943 is an apocalyptic number.

22313943 is a deficient number, since it is larger than the sum of its proper divisors (9917321).

22313943 is a wasteful number, since it uses less digits than its factorization.

22313943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479333 (or 2479330 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 22313943 is about 4723.7636477707. The cubic root of 22313943 is about 281.5304923185.

The spelling of 22313943 in words is "twenty-two million, three hundred thirteen thousand, nine hundred forty-three".