303994340 has 48 divisors (see below), whose sum is σ = 727946352. Its totient is φ = 105639936.

The previous prime is 303994337. The next prime is 303994349. The reversal of 303994340 is 43499303.

It can be written as a sum of positive squares in 8 ways, for example, as 119716 + 303874624 = 346^2 + 17432^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 303994340.

It is not an unprimeable number, because it can be changed into a prime (303994349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29969 + ... + 38808.

It is an arithmetic number, because the mean of its divisors is an integer number (15165549).

Almost surely, 2^303994340 is an apocalyptic number.

It is an amenable number.

303994340 is an abundant number, since it is smaller than the sum of its proper divisors (423952012).

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

303994340 is a wasteful number, since it uses less digits than its factorization.

303994340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68816 (or 68814 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 303994340 is about 17435.4334617755. The cubic root of 303994340 is about 672.3909083556.

It can be divided in two parts, 3039 and 94340, that added together give a palindrome (97379).

The spelling of 303994340 in words is "three hundred three million, nine hundred ninety-four thousand, three hundred forty".