23005406 has 8 divisors (see below), whose sum is σ = 34608600. Its totient is φ = 11469208.

The previous prime is 23005361. The next prime is 23005417. The reversal of 23005406 is 60450032.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15881 + ... + 17268.

It is an arithmetic number, because the mean of its divisors is an integer number (4326075).

Almost surely, 2^23005406 is an apocalyptic number.

23005406 is a deficient number, since it is larger than the sum of its proper divisors (11603194).

23005406 is a wasteful number, since it uses less digits than its factorization.

23005406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33498.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23005406 is about 4796.3951046593. The cubic root of 23005406 is about 284.4089773193.

Adding to 23005406 its reverse (60450032), we get a palindrome (83455438).

The spelling of 23005406 in words is "twenty-three million, five thousand, four hundred six".