23243409 has 32 divisors (see below), whose sum is σ = 41072640. Its totient is φ = 12702096.

The previous prime is 23243387. The next prime is 23243411. The reversal of 23243409 is 90434232.

It is a happy number.

It is not a de Polignac number, because 23243409 - 2⁵ = 23243377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23243489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1674 + ... + 7020.

It is an arithmetic number, because the mean of its divisors is an integer number (1283520).

Almost surely, 2^23243409 is an apocalyptic number.

It is an amenable number.

23243409 is a deficient number, since it is larger than the sum of its proper divisors (17829231).

23243409 is a wasteful number, since it uses less digits than its factorization.

23243409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5386 (or 5380 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 23243409 is about 4821.1418771905. The cubic root of 23243409 is about 285.3864010910.

The spelling of 23243409 in words is "twenty-three million, two hundred forty-three thousand, four hundred nine".