1399347180 has 288 divisors, whose sum is σ = 5604318720. Its totient is φ = 273623040.

The previous prime is 1399347167. The next prime is 1399347199. The reversal of 1399347180 is 817439931.

1399347180 is a `hidden beast` number, since 13 + 9 + 93 + 471 + 80 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 232651 + ... + 238589.

It is an arithmetic number, because the mean of its divisors is an integer number (19459440).

Almost surely, 2^1399347180 is an apocalyptic number.

1399347180 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 1399347180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2802159360).

1399347180 is an abundant number, since it is smaller than the sum of its proper divisors (4204971540).

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

1399347180 is a wasteful number, since it uses less digits than its factorization.

1399347180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5989 (or 5984 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1399347180 is about 37407.8491763427. The cubic root of 1399347180 is about 1118.5150334962.

The spelling of 1399347180 in words is "one billion, three hundred ninety-nine million, three hundred forty-seven thousand, one hundred eighty".