1986342 has 16 divisors (see below), whose sum is σ = 4065600. Its totient is φ = 646632.

The previous prime is 1986337. The next prime is 1986359. The reversal of 1986342 is 2436891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3592 + ... + 4107.

It is an arithmetic number, because the mean of its divisors is an integer number (254100).

2^1986342 is an apocalyptic number.

1986342 is an abundant number, since it is smaller than the sum of its proper divisors (2079258).

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

1986342 is a wasteful number, since it uses less digits than its factorization.

1986342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747.

The product of its digits is 10368, while the sum is 33.

The square root of 1986342 is about 1409.3764578706. The cubic root of 1986342 is about 125.7046496205.

The spelling of 1986342 in words is "one million, nine hundred eighty-six thousand, three hundred forty-two".