43226399 has 2 divisors, whose sum is σ = 43226400. Its totient is φ = 43226398.

The previous prime is 43226389. The next prime is 43226419. The reversal of 43226399 is 99362234.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43226399 - 2²⁰ = 42177823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43226329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21613199 + 21613200.

It is an arithmetic number, because the mean of its divisors is an integer number (21613200).

Almost surely, 2^43226399 is an apocalyptic number.

43226399 is a deficient number, since it is larger than the sum of its proper divisors (1).

43226399 is an equidigital number, since it uses as much as digits as its factorization.

43226399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 38.

The square root of 43226399 is about 6574.6786233245. The cubic root of 43226399 is about 350.9535873134.

The spelling of 43226399 in words is "forty-three million, two hundred twenty-six thousand, three hundred ninety-nine".