420020310 has 32 divisors (see below), whose sum is σ = 1008640512. Its totient is φ = 111939680.

The previous prime is 420020297. The next prime is 420020329. The reversal of 420020310 is 13020024.

It is a super-2 number, since 2×420020310² = 352834121624992200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69427 + ... + 75233.

It is an arithmetic number, because the mean of its divisors is an integer number (31520016).

Almost surely, 2^420020310 is an apocalyptic number.

420020310 is an abundant number, since it is smaller than the sum of its proper divisors (588620202).

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

420020310 is a wasteful number, since it uses less digits than its factorization.

420020310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8228.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 420020310 is about 20494.3970391910. The cubic root of 420020310 is about 748.8993098763.

Adding to 420020310 its reverse (13020024), we get a palindrome (433040334).

The spelling of 420020310 in words is "four hundred twenty million, twenty thousand, three hundred ten".