422413765 has 4 divisors (see below), whose sum is σ = 506896524. Its totient is φ = 337931008.

The previous prime is 422413753. The next prime is 422413787. The reversal of 422413765 is 567314224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48455521 + 373958244 = 6961^2 + 19338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422413765 is a prime.

It is a super-2 number, since 2×422413765² = 356866777722950450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422413765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42241372 + ... + 42241381.

It is an arithmetic number, because the mean of its divisors is an integer number (126724131).

Almost surely, 2^422413765 is an apocalyptic number.

It is an amenable number.

422413765 is a deficient number, since it is larger than the sum of its proper divisors (84482759).

422413765 is an equidigital number, since it uses as much as digits as its factorization.

422413765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84482758.

The product of its digits is 40320, while the sum is 34.

The square root of 422413765 is about 20552.7069993225. The cubic root of 422413765 is about 750.3191323350.

Adding to 422413765 its reverse (567314224), we get a palindrome (989727989).

The spelling of 422413765 in words is "four hundred twenty-two million, four hundred thirteen thousand, seven hundred sixty-five".