1389892 has 12 divisors (see below), whose sum is σ = 2779840. Its totient is φ = 595656.

The previous prime is 1389887. The next prime is 1389893. The reversal of 1389892 is 2989831.

1389892 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1389893) 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, 24792 + ... + 24847.

2^1389892 is an apocalyptic number.

It is an amenable number.

1389892 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1389892 is a wasteful number, since it uses less digits than its factorization.

1389892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49650 (or 49648 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 1389892 is about 1178.9368091632. The cubic root of 1389892 is about 111.5990125082.

The spelling of 1389892 in words is "one million, three hundred eighty-nine thousand, eight hundred ninety-two".