1303426660 has 12 divisors (see below), whose sum is σ = 2737196028. Its totient is φ = 521370656.

The previous prime is 1303426633. The next prime is 1303426661. The reversal of 1303426660 is 666243031.

It can be written as a sum of positive squares in 2 ways, for example, as 252110884 + 1051315776 = 15878^2 + 32424^2 .

It is not an unprimeable number, because it can be changed into a prime (1303426661) 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, 32585647 + ... + 32585686.

It is an arithmetic number, because the mean of its divisors is an integer number (228099669).

Almost surely, 2^1303426660 is an apocalyptic number.

1303426660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303426660 is an abundant number, since it is smaller than the sum of its proper divisors (1433769368).

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

1303426660 is a wasteful number, since it uses less digits than its factorization.

1303426660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65171342 (or 65171340 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 1303426660 is about 36103.0007063125. Note that the first 3 decimals coincide. The cubic root of 1303426660 is about 1092.3509731145.

Adding to 1303426660 its reverse (666243031), we get a palindrome (1969669691).

The spelling of 1303426660 in words is "one billion, three hundred three million, four hundred twenty-six thousand, six hundred sixty".