1369078660 has 12 divisors (see below), whose sum is σ = 2875065228. Its totient is φ = 547631456.

The previous prime is 1369078643. The next prime is 1369078673. The reversal of 1369078660 is 668709631.

It can be written as a sum of positive squares in 2 ways, for example, as 638673984 + 730404676 = 25272^2 + 27026^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1369078660.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34226947 + ... + 34226986.

It is an arithmetic number, because the mean of its divisors is an integer number (239588769).

Almost surely, 2^1369078660 is an apocalyptic number.

1369078660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1369078660 is an abundant number, since it is smaller than the sum of its proper divisors (1505986568).

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

1369078660 is a wasteful number, since it uses less digits than its factorization.

1369078660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68453942 (or 68453940 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 1369078660 is about 37001.0629577043. The cubic root of 1369078660 is about 1110.3915130021.

The spelling of 1369078660 in words is "one billion, three hundred sixty-nine million, seventy-eight thousand, six hundred sixty".