23066405 has 8 divisors (see below), whose sum is σ = 27723384. Its totient is φ = 18424000.

The previous prime is 23066389. The next prime is 23066411. The reversal of 23066405 is 50466032.

It can be written as a sum of positive squares in 4 ways, for example, as 3290596 + 19775809 = 1814^2 + 4447^2 .

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

It is not a de Polignac number, because 23066405 - 2⁴ = 23066389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215 + ... + 6795.

It is an arithmetic number, because the mean of its divisors is an integer number (3465423).

Almost surely, 2^23066405 is an apocalyptic number.

It is an amenable number.

23066405 is a deficient number, since it is larger than the sum of its proper divisors (4656979).

23066405 is an equidigital number, since it uses as much as digits as its factorization.

23066405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7287.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 23066405 is about 4802.7497332257. The cubic root of 23066405 is about 284.6601262939.

The spelling of 23066405 in words is "twenty-three million, sixty-six thousand, four hundred five".