1389348 has 18 divisors (see below), whose sum is σ = 3512054. Its totient is φ = 463104.

The previous prime is 1389347. The next prime is 1389371. The reversal of 1389348 is 8439831.

It can be written as a sum of positive squares in only one way, i.e., 1272384 + 116964 = 1128^2 + 342^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 38593 = 1389348 / (1 + 3 + 8 + 9 + 3 + 4 + 8).

It is not an unprimeable number, because it can be changed into a prime (1389347) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19261 + ... + 19332.

2^1389348 is an apocalyptic number.

1389348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1389348 is an abundant number, since it is smaller than the sum of its proper divisors (2122706).

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

1389348 is a wasteful number, since it uses less digits than its factorization.

1389348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38603 (or 38598 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1389348 is about 1178.7060702313. The cubic root of 1389348 is about 111.5844507569.

The spelling of 1389348 in words is "one million, three hundred eighty-nine thousand, three hundred forty-eight".