1303091968 has 36 divisors (see below), whose sum is σ = 2637765648. Its totient is φ = 642360320.

The previous prime is 1303091963. The next prime is 1303091969. The reversal of 1303091968 is 8691903031.

It is a super-2 number, since 2×1303091968² = 3396097354132226048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1303091968.

It is not an unprimeable number, because it can be changed into a prime (1303091963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17671 + ... + 54022.

It is an arithmetic number, because the mean of its divisors is an integer number (73271268).

Almost surely, 2^1303091968 is an apocalyptic number.

It is an amenable number.

1303091968 is an abundant number, since it is smaller than the sum of its proper divisors (1334673680).

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

1303091968 is an frugal number, since it uses more digits than its factorization.

1303091968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71780 (or 71766 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 1303091968 is about 36098.3651707387. The cubic root of 1303091968 is about 1092.2574676799.

Adding to 1303091968 its reverse (8691903031), we get a palindrome (9994994999).

The spelling of 1303091968 in words is "one billion, three hundred three million, ninety-one thousand, nine hundred sixty-eight".