303142340 has 24 divisors (see below), whose sum is σ = 670104960. Its totient is φ = 114874848.

The previous prime is 303142337. The next prime is 303142373. The reversal of 303142340 is 43241303.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 398492 + ... + 399251.

It is an arithmetic number, because the mean of its divisors is an integer number (27921040).

Almost surely, 2^303142340 is an apocalyptic number.

It is an amenable number.

303142340 is an abundant number, since it is smaller than the sum of its proper divisors (366962620).

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

303142340 is a wasteful number, since it uses less digits than its factorization.

303142340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797771 (or 797769 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 303142340 is about 17410.9833151376. The cubic root of 303142340 is about 671.7621542298.

Adding to 303142340 its reverse (43241303), we get a palindrome (346383643).

The spelling of 303142340 in words is "three hundred three million, one hundred forty-two thousand, three hundred forty".