1389001374 has 12 divisors (see below), whose sum is σ = 3009503016. Its totient is φ = 463000452.

The previous prime is 1389001343. The next prime is 1389001379. The reversal of 1389001374 is 4731009831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389001379) 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 5 ways as a sum of consecutive naturals, for example, 38583354 + ... + 38583389.

It is an arithmetic number, because the mean of its divisors is an integer number (250791918).

Almost surely, 2^1389001374 is an apocalyptic number.

1389001374 is an abundant number, since it is smaller than the sum of its proper divisors (1620501642).

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

1389001374 is a wasteful number, since it uses less digits than its factorization.

1389001374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77166751 (or 77166748 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1389001374 is about 37269.3087405710. The cubic root of 1389001374 is about 1115.7517031531.

The spelling of 1389001374 in words is "one billion, three hundred eighty-nine million, one thousand, three hundred seventy-four".