43022401 has 2 divisors, whose sum is σ = 43022402. Its totient is φ = 43022400.

The previous prime is 43022381. The next prime is 43022417. The reversal of 43022401 is 10422034.

It is an a-pointer prime, because the next prime (43022417) can be obtained adding 43022401 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34751025 + 8271376 = 5895^2 + 2876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43022401 is a prime.

It is not a weakly prime, because it can be changed into another prime (43022491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21511200 + 21511201.

It is an arithmetic number, because the mean of its divisors is an integer number (21511201).

Almost surely, 2^43022401 is an apocalyptic number.

It is an amenable number.

43022401 is a deficient number, since it is larger than the sum of its proper divisors (1).

43022401 is an equidigital number, since it uses as much as digits as its factorization.

43022401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 43022401 is about 6559.1463621420. The cubic root of 43022401 is about 350.4006323920.

Adding to 43022401 its reverse (10422034), we get a palindrome (53444435).

The spelling of 43022401 in words is "forty-three million, twenty-two thousand, four hundred one".