422919 has 24 divisors (see below), whose sum is σ = 717600. Its totient is φ = 239904.

The previous prime is 422911. The next prime is 422923. The reversal of 422919 is 919224.

It is not a de Polignac number, because 422919 - 2³ = 422911 is a prime.

It is a super-2 number, since 2×422919² = 357720961122, which contains 22 as substring.

422919 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 422892 and 422901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3019 + ... + 3155.

It is an arithmetic number, because the mean of its divisors is an integer number (29900).

2⁴²²⁹¹⁹ is an apocalyptic number.

422919 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

422919 is a deficient number, since it is larger than the sum of its proper divisors (294681).

422919 is a wasteful number, since it uses less digits than its factorization.

422919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 147 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 422919 is about 650.3222278225. The cubic root of 422919 is about 75.0618157036.

The spelling of 422919 in words is "four hundred twenty-two thousand, nine hundred nineteen".