1303645660 has 12 divisors (see below), whose sum is σ = 2737655928. Its totient is φ = 521458256.

The previous prime is 1303645633. The next prime is 1303645667. The reversal of 1303645660 is 665463031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303645667) 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, 32591122 + ... + 32591161.

It is an arithmetic number, because the mean of its divisors is an integer number (228137994).

Almost surely, 2^1303645660 is an apocalyptic number.

1303645660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303645660 is an abundant number, since it is smaller than the sum of its proper divisors (1434010268).

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

1303645660 is a wasteful number, since it uses less digits than its factorization.

1303645660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65182292 (or 65182290 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 1303645660 is about 36106.0335678125. The cubic root of 1303645660 is about 1092.4121481372.

The spelling of 1303645660 in words is "one billion, three hundred three million, six hundred forty-five thousand, six hundred sixty".