422481645 has 12 divisors (see below), whose sum is σ = 732301596. Its totient is φ = 225323520.

The previous prime is 422481613. The next prime is 422481649. The reversal of 422481645 is 546184224.

422481645 is a `hidden beast` number, since 4 + 2 + 2 + 4 + 8 + 1 + 645 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 64931364 + 357550281 = 8058^2 + 18909^2 .

It is not a de Polignac number, because 422481645 - 2⁵ = 422481613 is a prime.

It is a super-3 number, since 3×422481645³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422481649) 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, 4694196 + ... + 4694285.

It is an arithmetic number, because the mean of its divisors is an integer number (61025133).

Almost surely, 2^422481645 is an apocalyptic number.

422481645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

422481645 is a deficient number, since it is larger than the sum of its proper divisors (309819951).

422481645 is a wasteful number, since it uses less digits than its factorization.

422481645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9388492 (or 9388489 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 422481645 is about 20554.3582969647. The cubic root of 422481645 is about 750.3593211569.

The spelling of 422481645 in words is "four hundred twenty-two million, four hundred eighty-one thousand, six hundred forty-five".