420423201 has 24 divisors (see below), whose sum is σ = 663349440. Its totient is φ = 254469600.

The previous prime is 420423181. The next prime is 420423217. The reversal of 420423201 is 102324024.

420423201 is a `hidden beast` number, since 42 + 0 + 423 + 201 = 666.

It is not a de Polignac number, because 420423201 - 2⁹ = 420422689 is a prime.

It is a super-3 number, since 3×420423201³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (420423251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88671 + ... + 93291.

It is an arithmetic number, because the mean of its divisors is an integer number (27639560).

Almost surely, 2^420423201 is an apocalyptic number.

It is an amenable number.

420423201 is a deficient number, since it is larger than the sum of its proper divisors (242926239).

420423201 is a wasteful number, since it uses less digits than its factorization.

420423201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557 (or 5554 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 420423201 is about 20504.2239794634. The cubic root of 420423201 is about 749.1386858960.

Adding to 420423201 its reverse (102324024), we get a palindrome (522747225).

The spelling of 420423201 in words is "four hundred twenty million, four hundred twenty-three thousand, two hundred one".