23210409 has 8 divisors (see below), whose sum is σ = 31144960. Its totient is φ = 15374736.

The previous prime is 23210401. The next prime is 23210417. The reversal of 23210409 is 90401232.

It is an interprime number because it is at equal distance from previous prime (23210401) and next prime (23210417).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23210409 - 2³ = 23210401 is a prime.

It is a super-4 number, since 4×23210409⁴ (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23210401) 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, 24169 + ... + 25110.

It is an arithmetic number, because the mean of its divisors is an integer number (3893120).

Almost surely, 2^23210409 is an apocalyptic number.

It is an amenable number.

23210409 is a deficient number, since it is larger than the sum of its proper divisors (7934551).

23210409 is a wasteful number, since it uses less digits than its factorization.

23210409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49439.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 23210409 is about 4817.7182358457. The cubic root of 23210409 is about 285.2512773128.

The spelling of 23210409 in words is "twenty-three million, two hundred ten thousand, four hundred nine".