1380953280 has 336 divisors, whose sum is σ = 5270455296. Its totient is φ = 305141760.

The previous prime is 1380953279. The next prime is 1380953303. The reversal of 1380953280 is 823590831.

It is a tau number, because it is divible by the number of its divisors (336).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1457767 + ... + 1458713.

Almost surely, 2^1380953280 is an apocalyptic number.

1380953280 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 1380953280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2635227648).

1380953280 is an abundant number, since it is smaller than the sum of its proper divisors (3889502016).

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

1380953280 is a wasteful number, since it uses less digits than its factorization.

1380953280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1380953280 is about 37161.1797444591. The cubic root of 1380953280 is about 1113.5925802947.

The spelling of 1380953280 in words is "one billion, three hundred eighty million, nine hundred fifty-three thousand, two hundred eighty".