1381110912 has 336 divisors, whose sum is σ = 4459997430. Its totient is φ = 425502720.

The previous prime is 1381110869. The next prime is 1381110919. The reversal of 1381110912 is 2190111831.

It can be written as a sum of positive squares in only one way, i.e., 1364268096 + 16842816 = 36936^2 + 4104^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1381110919) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 33685612 + ... + 33685652.

Almost surely, 2^1381110912 is an apocalyptic number.

1381110912 is a gapful number since it is divisible by the number (12) 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 1381110912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2229998715).

1381110912 is an abundant number, since it is smaller than the sum of its proper divisors (3078886518).

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

1381110912 is an frugal number, since it uses more digits than its factorization.

1381110912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 27.

The square root of 1381110912 is about 37163.3006069160. The cubic root of 1381110912 is about 1113.6349498544.

The spelling of 1381110912 in words is "one billion, three hundred eighty-one million, one hundred ten thousand, nine hundred twelve".