1399044199 has 8 divisors (see below), whose sum is σ = 1599242240. Its totient is φ = 1198929816.

The previous prime is 1399044191. The next prime is 1399044203. The reversal of 1399044199 is 9914409931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1399044199 - 2³ = 1399044191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399044191) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20362 + ... + 56680.

It is an arithmetic number, because the mean of its divisors is an integer number (199905280).

Almost surely, 2^1399044199 is an apocalyptic number.

1399044199 is a deficient number, since it is larger than the sum of its proper divisors (200198041).

1399044199 is an equidigital number, since it uses as much as digits as its factorization.

1399044199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41829.

The product of its (nonzero) digits is 314928, while the sum is 49.

The square root of 1399044199 is about 37403.7992588988. The cubic root of 1399044199 is about 1118.4343022168.

The spelling of 1399044199 in words is "one billion, three hundred ninety-nine million, forty-four thousand, one hundred ninety-nine".