422628361 has 4 divisors (see below), whose sum is σ = 422669572. Its totient is φ = 422587152.

The previous prime is 422628359. The next prime is 422628389. The reversal of 422628361 is 163826224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 355699600 + 66928761 = 18860^2 + 8181^2 .

It is a cyclic number.

It is not a de Polignac number, because 422628361 - 2¹ = 422628359 is a prime.

It is a super-2 number, since 2×422628361² = 357229463043092642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422628331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8215 + ... + 30211.

It is an arithmetic number, because the mean of its divisors is an integer number (105667393).

Almost surely, 2^422628361 is an apocalyptic number.

It is an amenable number.

422628361 is a deficient number, since it is larger than the sum of its proper divisors (41211).

422628361 is a wasteful number, since it uses less digits than its factorization.

422628361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41210.

The product of its digits is 27648, while the sum is 34.

The square root of 422628361 is about 20557.9269626098. The cubic root of 422628361 is about 750.4461706712.

The spelling of 422628361 in words is "four hundred twenty-two million, six hundred twenty-eight thousand, three hundred sixty-one".