1389046536 has 64 divisors (see below), whose sum is σ = 3896726400. Its totient is φ = 458424000.

The previous prime is 1389046531. The next prime is 1389046541. The reversal of 1389046536 is 6356409831.

It is an interprime number because it is at equal distance from previous prime (1389046531) and next prime (1389046541).

It is a junction number, because it is equal to n+sod(n) for n = 1389046491 and 1389046500.

It is not an unprimeable number, because it can be changed into a prime (1389046531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10020 + ... + 53651.

It is an arithmetic number, because the mean of its divisors is an integer number (60886350).

Almost surely, 2^1389046536 is an apocalyptic number.

It is an amenable number.

1389046536 is an abundant number, since it is smaller than the sum of its proper divisors (2507679864).

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

1389046536 is a wasteful number, since it uses less digits than its factorization.

1389046536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63787 (or 63777 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 1389046536 is about 37269.9146229234. The cubic root of 1389046536 is about 1115.7637955415.

The spelling of 1389046536 in words is "one billion, three hundred eighty-nine million, forty-six thousand, five hundred thirty-six".