420204532 has 48 divisors (see below), whose sum is σ = 849401280. Its totient is φ = 179884800.

The previous prime is 420204529. The next prime is 420204553. The reversal of 420204532 is 235402024.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 149928 + ... + 152704.

It is an arithmetic number, because the mean of its divisors is an integer number (17695860).

Almost surely, 2^420204532 is an apocalyptic number.

It is an amenable number.

420204532 is an abundant number, since it is smaller than the sum of its proper divisors (429196748).

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

420204532 is a wasteful number, since it uses less digits than its factorization.

420204532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992 (or 2990 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 420204532 is about 20498.8909943928. The cubic root of 420204532 is about 749.0087836009.

Adding to 420204532 its reverse (235402024), we get a palindrome (655606556).

The spelling of 420204532 in words is "four hundred twenty million, two hundred four thousand, five hundred thirty-two".