420845302 has 16 divisors (see below), whose sum is σ = 668833200. Its totient is φ = 197916928.

The previous prime is 420845297. The next prime is 420845309. The reversal of 420845302 is 203548024.

It is a super-2 number, since 2×420845302² = 354221536430942408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420845309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68418 + ... + 74314.

It is an arithmetic number, because the mean of its divisors is an integer number (41802075).

Almost surely, 2^420845302 is an apocalyptic number.

420845302 is a deficient number, since it is larger than the sum of its proper divisors (247987898).

420845302 is a wasteful number, since it uses less digits than its factorization.

420845302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8015.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 420845302 is about 20514.5144227203. The cubic root of 420845302 is about 749.3893114736.

The spelling of 420845302 in words is "four hundred twenty million, eight hundred forty-five thousand, three hundred two".