422519 has 4 divisors (see below), whose sum is σ = 424296. Its totient is φ = 420744.

The previous prime is 422479. The next prime is 422537. The reversal of 422519 is 915224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422519 - 2¹² = 418423 is a prime.

It is a super-2 number, since 2×422519² = 357044610722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422494 and 422503.

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 422519.

It is not an unprimeable number, because it can be changed into a prime (422549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464 + ... + 1029.

It is an arithmetic number, because the mean of its divisors is an integer number (106074).

2⁴²²⁵¹⁹ is an apocalyptic number.

422519 is a deficient number, since it is larger than the sum of its proper divisors (1777).

422519 is a wasteful number, since it uses less digits than its factorization.

422519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776.

The product of its digits is 720, while the sum is 23.

The square root of 422519 is about 650.0146152203. The cubic root of 422519 is about 75.0381435606.

The spelling of 422519 in words is "four hundred twenty-two thousand, five hundred nineteen".