23423405 has 8 divisors (see below), whose sum is σ = 28867992. Its totient is φ = 18232128.

The previous prime is 23423381. The next prime is 23423417. The reversal of 23423405 is 50432432.

It can be written as a sum of positive squares in 4 ways, for example, as 1865956 + 21557449 = 1366^2 + 4643^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 23423405 - 2¹⁰ = 23422381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63122 + ... + 63491.

It is an arithmetic number, because the mean of its divisors is an integer number (3608499).

Almost surely, 2^23423405 is an apocalyptic number.

It is an amenable number.

23423405 is a deficient number, since it is larger than the sum of its proper divisors (5444587).

23423405 is a wasteful number, since it uses less digits than its factorization.

23423405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126655.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 23423405 is about 4839.7732384896. The cubic root of 23423405 is about 286.1211811442.

Adding to 23423405 its reverse (50432432), we get a palindrome (73855837).

The spelling of 23423405 in words is "twenty-three million, four hundred twenty-three thousand, four hundred five".