1389324964 has 12 divisors (see below), whose sum is σ = 2432727388. Its totient is φ = 694260000.

The previous prime is 1389324961. The next prime is 1389324997. The reversal of 1389324964 is 4694239831.

It can be written as a sum of positive squares in 2 ways, for example, as 5484964 + 1383840000 = 2342^2 + 37200^2 .

It is not an unprimeable number, because it can be changed into a prime (1389324961) 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, 92787 + ... + 106714.

Almost surely, 2^1389324964 is an apocalyptic number.

It is an amenable number.

1389324964 is a deficient number, since it is larger than the sum of its proper divisors (1043402424).

1389324964 is a wasteful number, since it uses less digits than its factorization.

1389324964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201246 (or 201244 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The square root of 1389324964 is about 37273.6497273878. The cubic root of 1389324964 is about 1115.8383404708.

The spelling of 1389324964 in words is "one billion, three hundred eighty-nine million, three hundred twenty-four thousand, nine hundred sixty-four".