420710166 has 16 divisors (see below), whose sum is σ = 934911600. Its totient is φ = 140236704.

The previous prime is 420710137. The next prime is 420710177. The reversal of 420710166 is 661017024.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3895411 + ... + 3895518.

It is an arithmetic number, because the mean of its divisors is an integer number (58431975).

Almost surely, 2^420710166 is an apocalyptic number.

420710166 is an abundant number, since it is smaller than the sum of its proper divisors (514201434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420710166 is a wasteful number, since it uses less digits than its factorization.

420710166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7790940 (or 7790934 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 420710166 is about 20511.2204902585. The cubic root of 420710166 is about 749.3090917231.

The spelling of 420710166 in words is "four hundred twenty million, seven hundred ten thousand, one hundred sixty-six".