1389913516 has 24 divisors (see below), whose sum is σ = 2494489536. Its totient is φ = 677326080.

The previous prime is 1389913513. The next prime is 1389913519. The reversal of 1389913516 is 6153199831.

It is an interprime number because it is at equal distance from previous prime (1389913513) and next prime (1389913519).

It is not an unprimeable number, because it can be changed into a prime (1389913513) 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, 29970 + ... + 60646.

It is an arithmetic number, because the mean of its divisors is an integer number (103937064).

Almost surely, 2^1389913516 is an apocalyptic number.

It is an amenable number.

1389913516 is a deficient number, since it is larger than the sum of its proper divisors (1104576020).

1389913516 is a wasteful number, since it uses less digits than its factorization.

1389913516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30969 (or 30967 counting only the distinct ones).

The product of its digits is 174960, while the sum is 46.

The square root of 1389913516 is about 37281.5439057988. The cubic root of 1389913516 is about 1115.9958836879.

The spelling of 1389913516 in words is "one billion, three hundred eighty-nine million, nine hundred thirteen thousand, five hundred sixteen".