23263405 has 32 divisors (see below), whose sum is σ = 31726080. Its totient is φ = 16230720.

The previous prime is 23263403. The next prime is 23263439. The reversal of 23263405 is 50436232.

It is a happy number.

It is not a de Polignac number, because 23263405 - 2¹ = 23263403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23263405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23263403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217362 + ... + 217468.

It is an arithmetic number, because the mean of its divisors is an integer number (991440).

Almost surely, 2^23263405 is an apocalyptic number.

It is an amenable number.

23263405 is a deficient number, since it is larger than the sum of its proper divisors (8462675).

23263405 is a wasteful number, since it uses less digits than its factorization.

23263405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 23263405 is about 4823.2152139418. The cubic root of 23263405 is about 285.4682156938.

Adding to 23263405 its reverse (50436232), we get a palindrome (73699637).

The spelling of 23263405 in words is "twenty-three million, two hundred sixty-three thousand, four hundred five".