22743401 has 2 divisors, whose sum is σ = 22743402. Its totient is φ = 22743400.

The previous prime is 22743377. The next prime is 22743403. The reversal of 22743401 is 10434722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17007376 + 5736025 = 4124^2 + 2395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22743401 is a prime.

It is a Sophie Germain prime.

Together with 22743403, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22743403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11371700 + 11371701.

It is an arithmetic number, because the mean of its divisors is an integer number (11371701).

Almost surely, 2^22743401 is an apocalyptic number.

It is an amenable number.

22743401 is a deficient number, since it is larger than the sum of its proper divisors (1).

22743401 is an equidigital number, since it uses as much as digits as its factorization.

22743401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 22743401 is about 4769.0041937495. The cubic root of 22743401 is about 283.3251557809.

The spelling of 22743401 in words is "twenty-two million, seven hundred forty-three thousand, four hundred one".