1399489189 has 8 divisors (see below), whose sum is σ = 1600148480. Its totient is φ = 1199012976.

The previous prime is 1399489177. The next prime is 1399489199. The reversal of 1399489189 is 9819849931.

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

It is not a de Polignac number, because 1399489189 - 2⁹ = 1399488677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399489129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28974 + ... + 60319.

It is an arithmetic number, because the mean of its divisors is an integer number (200018560).

Almost surely, 2^1399489189 is an apocalyptic number.

It is an amenable number.

1399489189 is a deficient number, since it is larger than the sum of its proper divisors (200659291).

1399489189 is an equidigital number, since it uses as much as digits as its factorization.

1399489189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91539.

The product of its digits is 5038848, while the sum is 61.

The square root of 1399489189 is about 37409.7472458716. The cubic root of 1399489189 is about 1118.5528687170.

The spelling of 1399489189 in words is "one billion, three hundred ninety-nine million, four hundred eighty-nine thousand, one hundred eighty-nine".