420312032 has 48 divisors (see below), whose sum is σ = 947554272. Its totient is φ = 179781120.

The previous prime is 420312031. The next prime is 420312071. The reversal of 420312032 is 230213024.

It is a self number, because there is not a number n which added to its sum of digits gives 420312032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420312031) 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, 135782 + ... + 138842.

It is an arithmetic number, because the mean of its divisors is an integer number (19740714).

Almost surely, 2^420312032 is an apocalyptic number.

It is an amenable number.

420312032 is an abundant number, since it is smaller than the sum of its proper divisors (527242240).

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

420312032 is a wasteful number, since it uses less digits than its factorization.

420312032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691 (or 3683 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 420312032 is about 20501.5129197823. The cubic root of 420312032 is about 749.0726505774.

Adding to 420312032 its reverse (230213024), we get a palindrome (650525056).

The spelling of 420312032 in words is "four hundred twenty million, three hundred twelve thousand, thirty-two".