1380370880 has 112 divisors (see below), whose sum is σ = 3773643456. Its totient is φ = 471121920.

The previous prime is 1380370867. The next prime is 1380370889. The reversal of 1380370880 is 880730831.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380370889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538562 + ... + 541118.

Almost surely, 2^1380370880 is an apocalyptic number.

1380370880 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 1380370880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1886821728).

1380370880 is an abundant number, since it is smaller than the sum of its proper divisors (2393272576).

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

1380370880 is a wasteful number, since it uses less digits than its factorization.

1380370880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822 (or 2812 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 1380370880 is about 37153.3427836581. The cubic root of 1380370880 is about 1113.4360103072.

The spelling of 1380370880 in words is "one billion, three hundred eighty million, three hundred seventy thousand, eight hundred eighty".