303400220 has 24 divisors (see below), whose sum is σ = 637761600. Its totient is φ = 121241792.

The previous prime is 303400183. The next prime is 303400261. The reversal of 303400220 is 22004303.

It is a junction number, because it is equal to n+sod(n) for n = 303400195 and 303400204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15341 + ... + 29019.

It is an arithmetic number, because the mean of its divisors is an integer number (26573400).

Almost surely, 2^303400220 is an apocalyptic number.

It is an amenable number.

303400220 is an abundant number, since it is smaller than the sum of its proper divisors (334361380).

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

303400220 is a wasteful number, since it uses less digits than its factorization.

303400220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14797 (or 14795 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 303400220 is about 17418.3874110091. The cubic root of 303400220 is about 671.9525872397.

Adding to 303400220 its reverse (22004303), we get a palindrome (325404523).

The spelling of 303400220 in words is "three hundred three million, four hundred thousand, two hundred twenty".