1389380333 has 4 divisors (see below), whose sum is σ = 1515687648. Its totient is φ = 1263073020.

The previous prime is 1389380329. The next prime is 1389380387. The reversal of 1389380333 is 3330839831.

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.

It is not a de Polignac number, because 1389380333 - 2² = 1389380329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389380323) 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, 63153641 + ... + 63153662.

It is an arithmetic number, because the mean of its divisors is an integer number (378921912).

Almost surely, 2^1389380333 is an apocalyptic number.

It is an amenable number.

1389380333 is a deficient number, since it is larger than the sum of its proper divisors (126307315).

1389380333 is a wasteful number, since it uses less digits than its factorization.

1389380333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126307314.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 1389380333 is about 37274.3924564841. The cubic root of 1389380333 is about 1115.8531635045.

The spelling of 1389380333 in words is "one billion, three hundred eighty-nine million, three hundred eighty thousand, three hundred thirty-three".