1389774 has 32 divisors (see below), whose sum is σ = 2983680. Its totient is φ = 430272.

The previous prime is 1389769. The next prime is 1389797. The reversal of 1389774 is 4779831.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8239 + ... + 8405.

It is an arithmetic number, because the mean of its divisors is an integer number (93240).

2^1389774 is an apocalyptic number.

1389774 is an abundant number, since it is smaller than the sum of its proper divisors (1593906).

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

1389774 is a wasteful number, since it uses less digits than its factorization.

1389774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264.

The product of its digits is 42336, while the sum is 39.

The square root of 1389774 is about 1178.8867630099. The cubic root of 1389774 is about 111.5958542158.

The spelling of 1389774 in words is "one million, three hundred eighty-nine thousand, seven hundred seventy-four".