1349620660 has 48 divisors (see below), whose sum is σ = 2857196160. Its totient is φ = 535489920.

The previous prime is 1349620637. The next prime is 1349620691. The reversal of 1349620660 is 660269431.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2138545 + ... + 2139175.

It is an arithmetic number, because the mean of its divisors is an integer number (59524920).

Almost surely, 2^1349620660 is an apocalyptic number.

1349620660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1349620660 is an abundant number, since it is smaller than the sum of its proper divisors (1507575500).

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

1349620660 is a wasteful number, since it uses less digits than its factorization.

1349620660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1334 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1349620660 is about 36737.1836155141. The cubic root of 1349620660 is about 1105.1059213384.

The spelling of 1349620660 in words is "one billion, three hundred forty-nine million, six hundred twenty thousand, six hundred sixty".