23440267 has 2 divisors, whose sum is σ = 23440268. Its totient is φ = 23440266.

The previous prime is 23440253. The next prime is 23440271. The reversal of 23440267 is 76204432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23440267 is a prime.

It is a super-2 number, since 2×23440267² = 1098892234062578, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23440217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11720133 + 11720134.

It is an arithmetic number, because the mean of its divisors is an integer number (11720134).

Almost surely, 2^23440267 is an apocalyptic number.

23440267 is a deficient number, since it is larger than the sum of its proper divisors (1).

23440267 is an equidigital number, since it uses as much as digits as its factorization.

23440267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 23440267 is about 4841.5149488564. The cubic root of 23440267 is about 286.1898221483.

Adding to 23440267 its reverse (76204432), we get a palindrome (99644699).

The spelling of 23440267 in words is "twenty-three million, four hundred forty thousand, two hundred sixty-seven".