1388482560 has 416 divisors, whose sum is σ = 5158364160. Its totient is φ = 358318080.

The previous prime is 1388482559. The next prime is 1388482573. The reversal of 1388482560 is 652848831.

1388482560 is a `hidden beast` number, since 1 + 3 + 8 + 8 + 4 + 82 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44789745 + ... + 44789775.

Almost surely, 2^1388482560 is an apocalyptic number.

1388482560 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 1388482560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2579182080).

1388482560 is an abundant number, since it is smaller than the sum of its proper divisors (3769881600).

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

1388482560 is an frugal number, since it uses more digits than its factorization.

1388482560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 1388482560 is about 37262.3477521210. The cubic root of 1388482560 is about 1115.6127688794.

The spelling of 1388482560 in words is "one billion, three hundred eighty-eight million, four hundred eighty-two thousand, five hundred sixty".