422600445 has 12 divisors (see below), whose sum is σ = 732507516. Its totient is φ = 225386880.

The previous prime is 422600419. The next prime is 422600447. The reversal of 422600445 is 544006224.

It can be written as a sum of positive squares in 2 ways, for example, as 331931961 + 90668484 = 18219^2 + 9522^2 .

It is not a de Polignac number, because 422600445 - 2⁷ = 422600317 is a prime.

It is a super-2 number, since 2×422600445² = 357182272228396050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422600447) 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 in 11 ways as a sum of consecutive naturals, for example, 4695516 + ... + 4695605.

It is an arithmetic number, because the mean of its divisors is an integer number (61042293).

Almost surely, 2^422600445 is an apocalyptic number.

422600445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

422600445 is a deficient number, since it is larger than the sum of its proper divisors (309907071).

422600445 is a wasteful number, since it uses less digits than its factorization.

422600445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9391132 (or 9391129 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 422600445 is about 20557.2479918884. The cubic root of 422600445 is about 750.4296471574.

Adding to 422600445 its reverse (544006224), we get a palindrome (966606669).

The spelling of 422600445 in words is "four hundred twenty-two million, six hundred thousand, four hundred forty-five".