1380261560 has 32 divisors (see below), whose sum is σ = 3108693600. Its totient is φ = 551552640.

The previous prime is 1380261559. The next prime is 1380261599. The reversal of 1380261560 is 651620831.

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 7 ways as a sum of consecutive naturals, for example, 24506 + ... + 57974.

It is an arithmetic number, because the mean of its divisors is an integer number (97146675).

Almost surely, 2^1380261560 is an apocalyptic number.

1380261560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380261560 is an abundant number, since it is smaller than the sum of its proper divisors (1728432040).

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

1380261560 is a wasteful number, since it uses less digits than its factorization.

1380261560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34511 (or 34507 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1380261560 is about 37151.8715544722. The cubic root of 1380261560 is about 1113.4066162654.

The spelling of 1380261560 in words is "one billion, three hundred eighty million, two hundred sixty-one thousand, five hundred sixty".