1399871360 has 192 divisors, whose sum is σ = 3623492880. Its totient is φ = 516907008.

The previous prime is 1399871329. The next prime is 1399871387. The reversal of 1399871360 is 631789931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16865879 + ... + 16865961.

Almost surely, 2^1399871360 is an apocalyptic number.

1399871360 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 1399871360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1811746440).

1399871360 is an abundant number, since it is smaller than the sum of its proper divisors (2223621520).

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

1399871360 is an equidigital number, since it uses as much as digits as its factorization.

1399871360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 1399871360 is about 37414.8548039412. The cubic root of 1399871360 is about 1118.6546771877.

It can be divided in two parts, 13998 and 71360, that added together give a palindrome (85358).

The spelling of 1399871360 in words is "one billion, three hundred ninety-nine million, eight hundred seventy-one thousand, three hundred sixty".