1986492 has 12 divisors (see below), whose sum is σ = 4635176. Its totient is φ = 662160.

The previous prime is 1986461. The next prime is 1986497. The reversal of 1986492 is 2946891.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1986492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1986497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82759 + ... + 82782.

2^1986492 is an apocalyptic number.

1986492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1986492 is an abundant number, since it is smaller than the sum of its proper divisors (2648684).

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

1986492 is a wasteful number, since it uses less digits than its factorization.

1986492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165548 (or 165546 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 1986492 is about 1409.4296718886. The cubic root of 1986492 is about 125.7078137656.

The spelling of 1986492 in words is "one million, nine hundred eighty-six thousand, four hundred ninety-two".