23481409 has 8 divisors (see below), whose sum is σ = 27030080. Its totient is φ = 19981296.

The previous prime is 23481379. The next prime is 23481439. The reversal of 23481409 is 90418432.

It is an interprime number because it is at equal distance from previous prime (23481379) and next prime (23481439).

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 23481409 - 2⁵ = 23481377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23481439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11094 + ... + 13039.

It is an arithmetic number, because the mean of its divisors is an integer number (3378760).

Almost surely, 2^23481409 is an apocalyptic number.

It is an amenable number.

23481409 is a deficient number, since it is larger than the sum of its proper divisors (3548671).

23481409 is a wasteful number, since it uses less digits than its factorization.

23481409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24279.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 23481409 is about 4845.7619627877. The cubic root of 23481409 is about 286.3571629556.

The spelling of 23481409 in words is "twenty-three million, four hundred eighty-one thousand, four hundred nine".