23440430 has 16 divisors (see below), whose sum is σ = 45438624. Its totient is φ = 8654880.

The previous prime is 23440423. The next prime is 23440441. The reversal of 23440430 is 3404432.

It is a happy number.

It is a Curzon number.

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 in 7 ways as a sum of consecutive naturals, for example, 90026 + ... + 90285.

It is an arithmetic number, because the mean of its divisors is an integer number (2839914).

Almost surely, 2^23440430 is an apocalyptic number.

23440430 is a deficient number, since it is larger than the sum of its proper divisors (21998194).

23440430 is a wasteful number, since it uses less digits than its factorization.

23440430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180331.

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

The square root of 23440430 is about 4841.5317824011. The cubic root of 23440430 is about 286.1904855200.

Adding to 23440430 its reverse (3404432), we get a palindrome (26844862).

The spelling of 23440430 in words is "twenty-three million, four hundred forty thousand, four hundred thirty".