1380881015 has 24 divisors (see below), whose sum is σ = 1836842400. Its totient is φ = 994492928.

The previous prime is 1380881011. The next prime is 1380881041. The reversal of 1380881015 is 5101880831.

It is not a de Polignac number, because 1380881015 - 2² = 1380881011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380881011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12461 + ... + 54009.

It is an arithmetic number, because the mean of its divisors is an integer number (76535100).

Almost surely, 2^1380881015 is an apocalyptic number.

1380881015 is a deficient number, since it is larger than the sum of its proper divisors (455961385).

1380881015 is a wasteful number, since it uses less digits than its factorization.

1380881015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41611 (or 41594 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 35.

The square root of 1380881015 is about 37160.2074133070. The cubic root of 1380881015 is about 1113.5731552660.

The spelling of 1380881015 in words is "one billion, three hundred eighty million, eight hundred eighty-one thousand, fifteen".