420032201 has 8 divisors (see below), whose sum is σ = 436007880. Its totient is φ = 404156032.

The previous prime is 420032191. The next prime is 420032227. The reversal of 420032201 is 102230024.

It can be written as a sum of positive squares in 4 ways, for example, as 202322176 + 217710025 = 14224^2 + 14755^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420032201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420032231) 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, 16220 + ... + 33213.

It is an arithmetic number, because the mean of its divisors is an integer number (54500985).

Almost surely, 2^420032201 is an apocalyptic number.

It is an amenable number.

420032201 is a deficient number, since it is larger than the sum of its proper divisors (15975679).

420032201 is a wasteful number, since it uses less digits than its factorization.

420032201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49755.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 420032201 is about 20494.6871408177. The cubic root of 420032201 is about 748.9063770565.

Adding to 420032201 its reverse (102230024), we get a palindrome (522262225).

The spelling of 420032201 in words is "four hundred twenty million, thirty-two thousand, two hundred one".