303040420 has 24 divisors (see below), whose sum is σ = 642567744. Its totient is φ = 120038496.

The previous prime is 303040417. The next prime is 303040457. The reversal of 303040420 is 24040303.

It is a junction number, because it is equal to n+sod(n) for n = 303040394 and 303040403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71494 + ... + 75613.

It is an arithmetic number, because the mean of its divisors is an integer number (26773656).

Almost surely, 2^303040420 is an apocalyptic number.

It is an amenable number.

303040420 is an abundant number, since it is smaller than the sum of its proper divisors (339527324).

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

303040420 is a wasteful number, since it uses less digits than its factorization.

303040420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147219 (or 147217 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 303040420 is about 17408.0561809755. The cubic root of 303040420 is about 671.6868610268.

Adding to 303040420 its reverse (24040303), we get a palindrome (327080723).

The spelling of 303040420 in words is "three hundred three million, forty thousand, four hundred twenty".