1380888576 has 156 divisors (see below), whose sum is σ = 4078724832. Its totient is φ = 449937408.

The previous prime is 1380888557. The next prime is 1380888599. The reversal of 1380888576 is 6758880831.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1732210 + ... + 1733006.

It is an arithmetic number, because the mean of its divisors is an integer number (26145672).

Almost surely, 2^1380888576 is an apocalyptic number.

1380888576 is a gapful number since it is divisible by the number (16) 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 1380888576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2039362416).

1380888576 is an abundant number, since it is smaller than the sum of its proper divisors (2697836256).

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

1380888576 is an equidigital number, since it uses as much as digits as its factorization.

1380888576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The square root of 1380888576 is about 37160.3091483373. The cubic root of 1380888576 is about 1113.5751877151.

The spelling of 1380888576 in words is "one billion, three hundred eighty million, eight hundred eighty-eight thousand, five hundred seventy-six".