423243646 has 8 divisors (see below), whose sum is σ = 725560560. Its totient is φ = 181390128.

The previous prime is 423243619. The next prime is 423243671. The reversal of 423243646 is 646342324.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15115831 + ... + 15115858.

It is an arithmetic number, because the mean of its divisors is an integer number (90695070).

Almost surely, 2^423243646 is an apocalyptic number.

423243646 is a deficient number, since it is larger than the sum of its proper divisors (302316914).

423243646 is a wasteful number, since it uses less digits than its factorization.

423243646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30231698.

The product of its digits is 82944, while the sum is 34.

The square root of 423243646 is about 20572.8861854627. The cubic root of 423243646 is about 750.8101739905.

The spelling of 423243646 in words is "four hundred twenty-three million, two hundred forty-three thousand, six hundred forty-six".