1380712560 has 80 divisors (see below), whose sum is σ = 4298296320. Its totient is φ = 366634240.

The previous prime is 1380712559. The next prime is 1380712589. The reversal of 1380712560 is 652170831.

It is a tau number, because it is divible by the number of its divisors (80).

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, 45325 + ... + 69395.

It is an arithmetic number, because the mean of its divisors is an integer number (53728704).

Almost surely, 2^1380712560 is an apocalyptic number.

1380712560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1380712560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2149148160).

1380712560 is an abundant number, since it is smaller than the sum of its proper divisors (2917583760).

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

1380712560 is a wasteful number, since it uses less digits than its factorization.

1380712560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24326 (or 24320 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1380712560 is about 37157.9407394974. The cubic root of 1380712560 is about 1113.5278714719.

The spelling of 1380712560 in words is "one billion, three hundred eighty million, seven hundred twelve thousand, five hundred sixty".