1389448 has 32 divisors (see below), whose sum is σ = 2770200. Its totient is φ = 652288.

The previous prime is 1389439. The next prime is 1389469. The reversal of 1389448 is 8449831.

It can be written as a sum of positive squares in 4 ways, for example, as 956484 + 432964 = 978^2 + 658^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12240 + ... + 12352.

2^1389448 is an apocalyptic number.

It is an amenable number.

1389448 is a deficient number, since it is larger than the sum of its proper divisors (1380752).

1389448 is a wasteful number, since it uses less digits than its factorization.

1389448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 197 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 1389448 is about 1178.7484888644. The cubic root of 1389448 is about 111.5871278345.

The spelling of 1389448 in words is "one million, three hundred eighty-nine thousand, four hundred forty-eight".