422673646 has 8 divisors (see below), whose sum is σ = 634344264. Its totient is φ = 211225560.

The previous prime is 422673619. The next prime is 422673659. The reversal of 422673646 is 646376224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×422673646² = 357306022045866632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 422673599 and 422673608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50800 + ... + 58531.

It is an arithmetic number, because the mean of its divisors is an integer number (79293033).

Almost surely, 2^422673646 is an apocalyptic number.

422673646 is a deficient number, since it is larger than the sum of its proper divisors (211670618).

422673646 is a wasteful number, since it uses less digits than its factorization.

422673646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111266.

The product of its digits is 290304, while the sum is 40.

The square root of 422673646 is about 20559.0283330706. The cubic root of 422673646 is about 750.4729733693.

The spelling of 422673646 in words is "four hundred twenty-two million, six hundred seventy-three thousand, six hundred forty-six".