23409235 has 24 divisors (see below), whose sum is σ = 30728880. Its totient is φ = 17071488.

The previous prime is 23409233. The next prime is 23409263. The reversal of 23409235 is 53290432.

It is not a de Polignac number, because 23409235 - 2¹ = 23409233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23409233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79749 + ... + 80041.

It is an arithmetic number, because the mean of its divisors is an integer number (1280370).

Almost surely, 2^23409235 is an apocalyptic number.

23409235 is a deficient number, since it is larger than the sum of its proper divisors (7319645).

23409235 is a wasteful number, since it uses less digits than its factorization.

23409235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 23409235 is about 4838.3091054624. The cubic root of 23409235 is about 286.0634731242.

Adding to 23409235 its reverse (53290432), we get a palindrome (76699667).

The spelling of 23409235 in words is "twenty-three million, four hundred nine thousand, two hundred thirty-five".