1389498 has 32 divisors (see below), whose sum is σ = 3119040. Its totient is φ = 408960.

The previous prime is 1389491. The next prime is 1389511. The reversal of 1389498 is 8949831.

It is not an unprimeable number, because it can be changed into a prime (1389491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2158 + ... + 2726.

It is an arithmetic number, because the mean of its divisors is an integer number (97470).

2^1389498 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1389498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1559520).

1389498 is an abundant number, since it is smaller than the sum of its proper divisors (1729542).

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

1389498 is a wasteful number, since it uses less digits than its factorization.

1389498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622.

The product of its digits is 62208, while the sum is 42.

The square root of 1389498 is about 1178.7696976085. The cubic root of 1389498 is about 111.5884663252.

The spelling of 1389498 in words is "one million, three hundred eighty-nine thousand, four hundred ninety-eight".