422487081 has 12 divisors (see below), whose sum is σ = 610625652. Its totient is φ = 281488896.

The previous prime is 422487073. The next prime is 422487113. The reversal of 422487081 is 180784224.

It can be written as a sum of positive squares in 2 ways, for example, as 135489600 + 286997481 = 11640^2 + 16941^2 .

It is not a de Polignac number, because 422487081 - 2³ = 422487073 is a prime.

It is a super-2 number, since 2×422487081² = 356990667223801122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422487031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2785 + ... + 29201.

It is an arithmetic number, because the mean of its divisors is an integer number (50885471).

Almost surely, 2^422487081 is an apocalyptic number.

It is an amenable number.

422487081 is a deficient number, since it is larger than the sum of its proper divisors (188138571).

422487081 is a wasteful number, since it uses less digits than its factorization.

422487081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28200 (or 28197 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 422487081 is about 20554.4905312683. The cubic root of 422487081 is about 750.3625393920.

The spelling of 422487081 in words is "four hundred twenty-two million, four hundred eighty-seven thousand, eighty-one".