1389488801 has 4 divisors (see below), whose sum is σ = 1389563952. Its totient is φ = 1389413652.

The previous prime is 1389488767. The next prime is 1389488833. The reversal of 1389488801 is 1088849831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1389488801 - 2¹⁰ = 1389487777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1389488801.

It is not an unprimeable number, because it can be changed into a prime (1389488101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11690 + ... + 53996.

It is an arithmetic number, because the mean of its divisors is an integer number (347390988).

Almost surely, 2^1389488801 is an apocalyptic number.

It is an amenable number.

1389488801 is a deficient number, since it is larger than the sum of its proper divisors (75151).

1389488801 is an equidigital number, since it uses as much as digits as its factorization.

1389488801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75150.

The product of its (nonzero) digits is 442368, while the sum is 50.

The square root of 1389488801 is about 37275.8474216214. The cubic root of 1389488801 is about 1115.8822007207.

The spelling of 1389488801 in words is "one billion, three hundred eighty-nine million, four hundred eighty-eight thousand, eight hundred one".