1381087200 has 288 divisors, whose sum is σ = 4889687040. Its totient is φ = 337305600.

The previous prime is 1381087171. The next prime is 1381087237. The reversal of 1381087200 is 27801831.

It is a happy number.

1381087200 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 1413112 + ... + 1414088.

It is an arithmetic number, because the mean of its divisors is an integer number (16978080).

Almost surely, 2^1381087200 is an apocalyptic number.

1381087200 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 1381087200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2444843520).

1381087200 is an abundant number, since it is smaller than the sum of its proper divisors (3508599840).

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

1381087200 is a wasteful number, since it uses less digits than its factorization.

1381087200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1381087200 is about 37162.9815811380. The cubic root of 1381087200 is about 1113.6285765639.

The spelling of 1381087200 in words is "one billion, three hundred eighty-one million, eighty-seven thousand, two hundred".