423420566 has 8 divisors (see below), whose sum is σ = 643170720. Its totient is φ = 209030328.

The previous prime is 423420541. The next prime is 423420589. The reversal of 423420566 is 665024324.

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

It is a Curzon number.

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, 1339781 + ... + 1340096.

It is an arithmetic number, because the mean of its divisors is an integer number (80396340).

Almost surely, 2^423420566 is an apocalyptic number.

423420566 is a deficient number, since it is larger than the sum of its proper divisors (219750154).

423420566 is a wasteful number, since it uses less digits than its factorization.

423420566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679958.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 423420566 is about 20577.1855704321. The cubic root of 423420566 is about 750.9147747589.

The spelling of 423420566 in words is "four hundred twenty-three million, four hundred twenty thousand, five hundred sixty-six".