1385984 has 20 divisors (see below), whose sum is σ = 2770284. Its totient is φ = 692736.

The previous prime is 1385977. The next prime is 1385987. The reversal of 1385984 is 4895831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 842 + ... + 1865.

2^1385984 is an apocalyptic number.

It is an amenable number.

1385984 is a deficient number, since it is larger than the sum of its proper divisors (1384300).

1385984 is an frugal number, since it uses more digits than its factorization.

1385984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725 (or 2709 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 1385984 is about 1177.2782169054. The cubic root of 1385984 is about 111.4943189207.

The spelling of 1385984 in words is "one million, three hundred eighty-five thousand, nine hundred eighty-four".