745342399 has 2 divisors, whose sum is σ = 745342400. Its totient is φ = 745342398.

The previous prime is 745342391. The next prime is 745342561. The reversal of 745342399 is 993243547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 745342399 - 2³ = 745342391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745342391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372671199 + 372671200.

It is an arithmetic number, because the mean of its divisors is an integer number (372671200).

Almost surely, 2^745342399 is an apocalyptic number.

745342399 is a deficient number, since it is larger than the sum of its proper divisors (1).

745342399 is an equidigital number, since it uses as much as digits as its factorization.

745342399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 46.

The square root of 745342399 is about 27300.9596717771. The cubic root of 745342399 is about 906.6756290715.

The spelling of 745342399 in words is "seven hundred forty-five million, three hundred forty-two thousand, three hundred ninety-nine".