420203330 has 64 divisors (see below), whose sum is σ = 828610560. Its totient is φ = 152925696.

The previous prime is 420203327. The next prime is 420203341. The reversal of 420203330 is 33302024.

It is a junction number, because it is equal to n+sod(n) for n = 420203299 and 420203308.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 486479 + ... + 487341.

It is an arithmetic number, because the mean of its divisors is an integer number (12947040).

Almost surely, 2^420203330 is an apocalyptic number.

420203330 is a deficient number, since it is larger than the sum of its proper divisors (408407230).

420203330 is a wasteful number, since it uses less digits than its factorization.

420203330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 420203330 is about 20498.8616757126. The cubic root of 420203330 is about 749.0080694174.

Adding to 420203330 its reverse (33302024), we get a palindrome (453505354).

The spelling of 420203330 in words is "four hundred twenty million, two hundred three thousand, three hundred thirty".