23340447 has 32 divisors (see below), whose sum is σ = 38539200. Its totient is φ = 13862016.

The previous prime is 23340437. The next prime is 23340467. The reversal of 23340447 is 74404332.

It is not a de Polignac number, because 23340447 - 2⁷ = 23340319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 23340447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23340407) 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 in 31 ways as a sum of consecutive naturals, for example, 9033 + ... + 11325.

It is an arithmetic number, because the mean of its divisors is an integer number (1204350).

Almost surely, 2^23340447 is an apocalyptic number.

23340447 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23340447 is a deficient number, since it is larger than the sum of its proper divisors (15198753).

23340447 is a wasteful number, since it uses less digits than its factorization.

23340447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 23340447 is about 4831.1951937383. The cubic root of 23340447 is about 285.7829991995.

Adding to 23340447 its reverse (74404332), we get a palindrome (97744779).

The spelling of 23340447 in words is "twenty-three million, three hundred forty thousand, four hundred forty-seven".