420235312 has 40 divisors (see below), whose sum is σ = 979500800. Its totient is φ = 170620992.

The previous prime is 420235289. The next prime is 420235313. The reversal of 420235312 is 213532024.

It is not an unprimeable number, because it can be changed into a prime (420235313) 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, 96612 + ... + 100867.

It is an arithmetic number, because the mean of its divisors is an integer number (24487520).

Almost surely, 2^420235312 is an apocalyptic number.

It is an amenable number.

420235312 is an abundant number, since it is smaller than the sum of its proper divisors (559265488).

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

420235312 is a wasteful number, since it uses less digits than its factorization.

420235312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197513 (or 197507 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 420235312 is about 20499.6417529673. The cubic root of 420235312 is about 749.0270714629.

Adding to 420235312 its reverse (213532024), we get a palindrome (633767336).

The spelling of 420235312 in words is "four hundred twenty million, two hundred thirty-five thousand, three hundred twelve".