1489986 has 48 divisors (see below), whose sum is σ = 3481920. Its totient is φ = 459360.

The previous prime is 1489979. The next prime is 1489997. The reversal of 1489986 is 6899841.

1489986 = 129² + 130² + ... + 187².

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24396 + ... + 24456.

It is an arithmetic number, because the mean of its divisors is an integer number (72540).

2^1489986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1489986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1740960).

1489986 is an abundant number, since it is smaller than the sum of its proper divisors (1991934).

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

1489986 is a wasteful number, since it uses less digits than its factorization.

1489986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 148 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 1489986 is about 1220.6498269365. The cubic root of 1489986 is about 114.2161181924.

It can be divided in two parts, 14 and 89986, that added together give a square (90000 = 300²).

The spelling of 1489986 in words is "one million, four hundred eighty-nine thousand, nine hundred eighty-six".