420421310 has 16 divisors (see below), whose sum is σ = 758872800. Its totient is φ = 167698656.

The previous prime is 420421283. The next prime is 420421319. The reversal of 420421310 is 13124024.

It is a super-2 number, since 2×420421310² = 353508155804232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420421319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54965 + ... + 62144.

It is an arithmetic number, because the mean of its divisors is an integer number (47429550).

Almost surely, 2^420421310 is an apocalyptic number.

420421310 is a deficient number, since it is larger than the sum of its proper divisors (338451490).

420421310 is a wasteful number, since it uses less digits than its factorization.

420421310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117475.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 420421310 is about 20504.1778669617. The cubic root of 420421310 is about 749.1375627235.

Adding to 420421310 its reverse (13124024), we get a palindrome (433545334).

The spelling of 420421310 in words is "four hundred twenty million, four hundred twenty-one thousand, three hundred ten".