1389588 has 24 divisors (see below), whose sum is σ = 3319008. Its totient is φ = 452256.

The previous prime is 1389587. The next prime is 1389589. The reversal of 1389588 is 8859831.

It is an interprime number because it is at equal distance from previous prime (1389587) and next prime (1389589).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831 + ... + 1862.

It is an arithmetic number, because the mean of its divisors is an integer number (138292).

2^1389588 is an apocalyptic number.

It is an amenable number.

1389588 is an abundant number, since it is smaller than the sum of its proper divisors (1929420).

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

1389588 is a wasteful number, since it uses less digits than its factorization.

1389588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743 (or 2741 counting only the distinct ones).

The product of its digits is 69120, while the sum is 42.

The square root of 1389588 is about 1178.8078723863. The cubic root of 1389588 is about 111.5908755274.

The spelling of 1389588 in words is "one million, three hundred eighty-nine thousand, five hundred eighty-eight".