420670546 has 8 divisors (see below), whose sum is σ = 632112624. Its totient is φ = 209966340.

The previous prime is 420670517. The next prime is 420670631. The reversal of 420670546 is 645076024.

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

It is a super-3 number, since 3×420670546³ (a number of 27 digits) contains 333 as substring.

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, 183040 + ... + 185323.

It is an arithmetic number, because the mean of its divisors is an integer number (79014078).

Almost surely, 2^420670546 is an apocalyptic number.

420670546 is a deficient number, since it is larger than the sum of its proper divisors (211442078).

420670546 is a wasteful number, since it uses less digits than its factorization.

420670546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368936.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 420670546 is about 20510.2546546843. The cubic root of 420670546 is about 749.2855691490.

The spelling of 420670546 in words is "four hundred twenty million, six hundred seventy thousand, five hundred forty-six".