424644646 has 8 divisors (see below), whose sum is σ = 637253064. Its totient is φ = 212226960.

The previous prime is 424644611. The next prime is 424644677. The reversal of 424644646 is 646446424.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 424644599 and 424644608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41980 + ... + 51103.

It is an arithmetic number, because the mean of its divisors is an integer number (79656633).

Almost surely, 2^424644646 is an apocalyptic number.

424644646 is a deficient number, since it is larger than the sum of its proper divisors (212608418).

424644646 is a wasteful number, since it uses less digits than its factorization.

424644646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95366.

The product of its digits is 442368, while the sum is 40.

The square root of 424644646 is about 20606.9077253236. The cubic root of 424644646 is about 751.6376930495.

The spelling of 424644646 in words is "four hundred twenty-four million, six hundred forty-four thousand, six hundred forty-six".