422402345 has 4 divisors (see below), whose sum is σ = 506882820. Its totient is φ = 337921872.

The previous prime is 422402341. The next prime is 422402353. The reversal of 422402345 is 543204224.

It is a happy number.

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 116467264 + 305935081 = 10792^2 + 17491^2 .

It is a cyclic number.

It is not a de Polignac number, because 422402345 - 2² = 422402341 is a prime.

It is a super-2 number, since 2×422402345² = 356847482122998050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422402341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42240230 + ... + 42240239.

It is an arithmetic number, because the mean of its divisors is an integer number (126720705).

Almost surely, 2^422402345 is an apocalyptic number.

It is an amenable number.

422402345 is a deficient number, since it is larger than the sum of its proper divisors (84480475).

422402345 is an equidigital number, since it uses as much as digits as its factorization.

422402345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84480474.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 422402345 is about 20552.4291751608. The cubic root of 422402345 is about 750.3123706221.

Adding to 422402345 its reverse (543204224), we get a palindrome (965606569).

The spelling of 422402345 in words is "four hundred twenty-two million, four hundred two thousand, three hundred forty-five".