422494 has 4 divisors (see below), whose sum is σ = 633744. Its totient is φ = 211246.

The previous prime is 422479. The next prime is 422537. The reversal of 422494 is 494224.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 105622 + ... + 105625.

It is an arithmetic number, because the mean of its divisors is an integer number (158436).

2⁴²²⁴⁹⁴ is an apocalyptic number.

422494 is a deficient number, since it is larger than the sum of its proper divisors (211250).

422494 is a wasteful number, since it uses less digits than its factorization.

422494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211249.

The product of its digits is 2304, while the sum is 25.

The square root of 422494 is about 649.9953845990. The cubic root of 422494 is about 75.0366635557.

The spelling of 422494 in words is "four hundred twenty-two thousand, four hundred ninety-four".