22354047 has 12 divisors (see below), whose sum is σ = 32586840. Its totient is φ = 14765328.

The previous prime is 22354039. The next prime is 22354049. The reversal of 22354047 is 74045322.

It is not a de Polignac number, because 22354047 - 2³ = 22354039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22354047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22354049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10413 + ... + 12374.

It is an arithmetic number, because the mean of its divisors is an integer number (2715570).

Almost surely, 2^22354047 is an apocalyptic number.

22354047 is a deficient number, since it is larger than the sum of its proper divisors (10232793).

22354047 is a wasteful number, since it uses less digits than its factorization.

22354047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22902 (or 22899 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 22354047 is about 4728.0066624319. The cubic root of 22354047 is about 281.6990527206.

Adding to 22354047 its reverse (74045322), we get a palindrome (96399369).

The spelling of 22354047 in words is "twenty-two million, three hundred fifty-four thousand, forty-seven".