23235409 has 8 divisors (see below), whose sum is σ = 24097320. Its totient is φ = 22377600.

The previous prime is 23235361. The next prime is 23235419. The reversal of 23235409 is 90453232.

It can be written as a sum of positive squares in 4 ways, for example, as 2259009 + 20976400 = 1503^2 + 4580^2 .

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 23235409 - 2⁷ = 23235281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23235419) 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 7 ways as a sum of consecutive naturals, for example, 14949 + ... + 16429.

It is an arithmetic number, because the mean of its divisors is an integer number (3012165).

Almost surely, 2^23235409 is an apocalyptic number.

23235409 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

23235409 is a deficient number, since it is larger than the sum of its proper divisors (861911).

23235409 is a wasteful number, since it uses less digits than its factorization.

23235409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051.

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

The square root of 23235409 is about 4820.3121268233. The cubic root of 23235409 is about 285.3536555617.

The spelling of 23235409 in words is "twenty-three million, two hundred thirty-five thousand, four hundred nine".