23040427 has 2 divisors, whose sum is σ = 23040428. Its totient is φ = 23040426.

The previous prime is 23040403. The next prime is 23040431. The reversal of 23040427 is 72404032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23040427 - 2⁷ = 23040299 is a prime.

It is a super-2 number, since 2×23040427² = 1061722552684658, which contains 22 as substring.

It is equal to p_1450642 and since 23040427 and 1450642 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 23040398 and 23040407.

It is not a weakly prime, because it can be changed into another prime (23040487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11520213 + 11520214.

It is an arithmetic number, because the mean of its divisors is an integer number (11520214).

Almost surely, 2^23040427 is an apocalyptic number.

23040427 is a deficient number, since it is larger than the sum of its proper divisors (1).

23040427 is an equidigital number, since it uses as much as digits as its factorization.

23040427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 23040427 is about 4800.0444789606. The cubic root of 23040427 is about 284.5532222111.

Adding to 23040427 its reverse (72404032), we get a palindrome (95444459).

The spelling of 23040427 in words is "twenty-three million, forty thousand, four hundred twenty-seven".