1382881120 has 48 divisors (see below), whose sum is σ = 3287925648. Its totient is φ = 549619200.

The previous prime is 1382881111. The next prime is 1382881217. The reversal of 1382881120 is 211882831.

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, 2406 + ... + 52645.

It is an arithmetic number, because the mean of its divisors is an integer number (68498451).

Almost surely, 2^1382881120 is an apocalyptic number.

1382881120 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 1382881120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1643962824).

1382881120 is an abundant number, since it is smaller than the sum of its proper divisors (1905044528).

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

1382881120 is a wasteful number, since it uses less digits than its factorization.

1382881120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55223 (or 55215 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 1382881120 is about 37187.1095945894. The cubic root of 1382881120 is about 1114.1105389443.

The spelling of 1382881120 in words is "one billion, three hundred eighty-two million, eight hundred eighty-one thousand, one hundred twenty".