420495252 has 24 divisors (see below), whose sum is σ = 981538656. Its totient is φ = 140110368.

The previous prime is 420495247. The next prime is 420495259. The reversal of 420495252 is 252594024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420495259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35823 + ... + 46089.

It is an arithmetic number, because the mean of its divisors is an integer number (40897444).

Almost surely, 2^420495252 is an apocalyptic number.

It is an amenable number.

420495252 is an abundant number, since it is smaller than the sum of its proper divisors (561043404).

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

420495252 is a wasteful number, since it uses less digits than its factorization.

420495252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13687 (or 13685 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 420495252 is about 20505.9808836349. The cubic root of 420495252 is about 749.1814785774.

The spelling of 420495252 in words is "four hundred twenty million, four hundred ninety-five thousand, two hundred fifty-two".