23540419 has 4 divisors (see below), whose sum is σ = 26903344. Its totient is φ = 20177496.

The previous prime is 23540371. The next prime is 23540441. The reversal of 23540419 is 91404532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23540419 - 2⁹ = 23539907 is a prime.

It is a super-2 number, since 2×23540419² = 1108302653391122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23540219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1681452 + ... + 1681465.

It is an arithmetic number, because the mean of its divisors is an integer number (6725836).

Almost surely, 2^23540419 is an apocalyptic number.

23540419 is a deficient number, since it is larger than the sum of its proper divisors (3362925).

23540419 is an equidigital number, since it uses as much as digits as its factorization.

23540419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362924.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 23540419 is about 4851.8469679082. The cubic root of 23540419 is about 286.5968391009.

The spelling of 23540419 in words is "twenty-three million, five hundred forty thousand, four hundred nineteen".