420341666 has 8 divisors (see below), whose sum is σ = 631488960. Its totient is φ = 209845348.

The previous prime is 420341659. The next prime is 420341671. The reversal of 420341666 is 666143024.

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, 161126 + ... + 163713.

It is an arithmetic number, because the mean of its divisors is an integer number (78936120).

Almost surely, 2^420341666 is an apocalyptic number.

420341666 is a deficient number, since it is larger than the sum of its proper divisors (211147294).

420341666 is a wasteful number, since it uses less digits than its factorization.

420341666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325488.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 420341666 is about 20502.2356341937. The cubic root of 420341666 is about 749.0902545601.

The spelling of 420341666 in words is "four hundred twenty million, three hundred forty-one thousand, six hundred sixty-six".