422649 has 12 divisors (see below), whose sum is σ = 616512. Its totient is φ = 279000.

The previous prime is 422627. The next prime is 422657. The reversal of 422649 is 946224.

It is not a de Polignac number, because 422649 - 2⁸ = 422393 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422649.

It is not an unprimeable number, because it can be changed into a prime (422689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1204 + ... + 1514.

It is an arithmetic number, because the mean of its divisors is an integer number (51376).

2⁴²²⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

422649 is a deficient number, since it is larger than the sum of its proper divisors (193863).

422649 is a wasteful number, since it uses less digits than its factorization.

422649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 465 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 422649 is about 650.1146052813. The cubic root of 422649 is about 75.0458386452.

The spelling of 422649 in words is "four hundred twenty-two thousand, six hundred forty-nine".