23540413 has 8 divisors (see below), whose sum is σ = 25389056. Its totient is φ = 21697200.

The previous prime is 23540371. The next prime is 23540441. The reversal of 23540413 is 31404532.

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 23540413 - 2¹³ = 23532221 is a prime.

It is a super-3 number, since 3×23540413³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23540443) 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, 15268 + ... + 16738.

It is an arithmetic number, because the mean of its divisors is an integer number (3173632).

Almost surely, 2^23540413 is an apocalyptic number.

It is an amenable number.

23540413 is a deficient number, since it is larger than the sum of its proper divisors (1848643).

23540413 is a wasteful number, since it uses less digits than its factorization.

23540413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 23540413 is about 4851.8463495869. The cubic root of 23540413 is about 286.5968147515.

Adding to 23540413 its reverse (31404532), we get a palindrome (54944945).

The spelling of 23540413 in words is "twenty-three million, five hundred forty thousand, four hundred thirteen".