23426281 has 4 divisors (see below), whose sum is σ = 23440000. Its totient is φ = 23412564.

The previous prime is 23426251. The next prime is 23426327. The reversal of 23426281 is 18262432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23426281 - 2²¹ = 21329129 is a prime.

It is a super-3 number, since 3×23426281³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23426201) 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, 3861 + ... + 7858.

It is an arithmetic number, because the mean of its divisors is an integer number (5860000).

Almost surely, 2^23426281 is an apocalyptic number.

It is an amenable number.

23426281 is a deficient number, since it is larger than the sum of its proper divisors (13719).

23426281 is a wasteful number, since it uses less digits than its factorization.

23426281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13718.

The product of its digits is 4608, while the sum is 28.

The square root of 23426281 is about 4840.0703507284. The cubic root of 23426281 is about 286.1328909538.

The spelling of 23426281 in words is "twenty-three million, four hundred twenty-six thousand, two hundred eighty-one".