423538646 has 8 divisors (see below), whose sum is σ = 672679080. Its totient is φ = 199312288.

The previous prime is 423538631. The next prime is 423538669. The reversal of 423538646 is 646835324.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6228476 + ... + 6228543.

It is an arithmetic number, because the mean of its divisors is an integer number (84084885).

Almost surely, 2^423538646 is an apocalyptic number.

423538646 is a deficient number, since it is larger than the sum of its proper divisors (249140434).

423538646 is a wasteful number, since it uses less digits than its factorization.

423538646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12457038.

The product of its digits is 414720, while the sum is 41.

The square root of 423538646 is about 20580.0545674690. The cubic root of 423538646 is about 750.9845712234.

The spelling of 423538646 in words is "four hundred twenty-three million, five hundred thirty-eight thousand, six hundred forty-six".