23640334 has 4 divisors (see below), whose sum is σ = 35460504. Its totient is φ = 11820166.

The previous prime is 23640311. The next prime is 23640341. The reversal of 23640334 is 43304632.

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

It is a junction number, because it is equal to n+sod(n) for n = 23640299 and 23640308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5910082 + ... + 5910085.

It is an arithmetic number, because the mean of its divisors is an integer number (8865126).

Almost surely, 2^23640334 is an apocalyptic number.

23640334 is a deficient number, since it is larger than the sum of its proper divisors (11820170).

23640334 is a wasteful number, since it uses less digits than its factorization.

23640334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11820169.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 23640334 is about 4862.1326596464. The cubic root of 23640334 is about 287.0017441731.

Adding to 23640334 its reverse (43304632), we get a palindrome (66944966).

The spelling of 23640334 in words is "twenty-three million, six hundred forty thousand, three hundred thirty-four".