420344066 has 8 divisors (see below), whose sum is σ = 650855424. Its totient is φ = 203392260.

The previous prime is 420344059. The next prime is 420344117. The reversal of 420344066 is 660443024.

It is a happy number.

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

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, 3389810 + ... + 3389933.

It is an arithmetic number, because the mean of its divisors is an integer number (81356928).

Almost surely, 2^420344066 is an apocalyptic number.

420344066 is a deficient number, since it is larger than the sum of its proper divisors (230511358).

420344066 is a wasteful number, since it uses less digits than its factorization.

420344066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6779776.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 420344066 is about 20502.2941643124. The cubic root of 420344066 is about 749.0916802362.

The spelling of 420344066 in words is "four hundred twenty million, three hundred forty-four thousand, sixty-six".