303430240 has 48 divisors (see below), whose sum is σ = 720679680. Its totient is φ = 120724480.

The previous prime is 303430213. The next prime is 303430249. The reversal of 303430240 is 42034303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303430249) 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, 25596 + ... + 35524.

It is an arithmetic number, because the mean of its divisors is an integer number (15014160).

Almost surely, 2^303430240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303430240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360339840).

303430240 is an abundant number, since it is smaller than the sum of its proper divisors (417249440).

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

303430240 is a wasteful number, since it uses less digits than its factorization.

303430240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10135 (or 10127 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 303430240 is about 17419.2491227378. The cubic root of 303430240 is about 671.9747486732.

Adding to 303430240 its reverse (42034303), we get a palindrome (345464543).

The spelling of 303430240 in words is "three hundred three million, four hundred thirty thousand, two hundred forty".