23905406 has 8 divisors (see below), whose sum is σ = 40980720. Its totient is φ = 10245168.

The previous prime is 23905403. The next prime is 23905423. The reversal of 23905406 is 60450932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23905403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853751 + ... + 853778.

It is an arithmetic number, because the mean of its divisors is an integer number (5122590).

Almost surely, 2^23905406 is an apocalyptic number.

23905406 is a deficient number, since it is larger than the sum of its proper divisors (17075314).

23905406 is a wasteful number, since it uses less digits than its factorization.

23905406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707538.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 23905406 is about 4889.3154940135. The cubic root of 23905406 is about 288.0704479797.

The spelling of 23905406 in words is "twenty-three million, nine hundred five thousand, four hundred six".