422400757 has 2 divisors, whose sum is σ = 422400758. Its totient is φ = 422400756.

The previous prime is 422400749. The next prime is 422400787. The reversal of 422400757 is 757004224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326380356 + 96020401 = 18066^2 + 9799^2 .

It is a cyclic number.

It is not a de Polignac number, because 422400757 - 2³ = 422400749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422400787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211200378 + 211200379.

It is an arithmetic number, because the mean of its divisors is an integer number (211200379).

Almost surely, 2^422400757 is an apocalyptic number.

It is an amenable number.

422400757 is a deficient number, since it is larger than the sum of its proper divisors (1).

422400757 is an equidigital number, since it uses as much as digits as its factorization.

422400757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 422400757 is about 20552.3905422216. The cubic root of 422400757 is about 750.3114303673.

The spelling of 422400757 in words is "four hundred twenty-two million, four hundred thousand, seven hundred fifty-seven".