1986474 has 16 divisors (see below), whose sum is σ = 4540608. Its totient is φ = 567552.

The previous prime is 1986461. The next prime is 1986497. The reversal of 1986474 is 4746891.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23607 + ... + 23690.

It is an arithmetic number, because the mean of its divisors is an integer number (283788).

2^1986474 is an apocalyptic number.

1986474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1986474 is an abundant number, since it is smaller than the sum of its proper divisors (2554134).

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

1986474 is a wasteful number, since it uses less digits than its factorization.

1986474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47309.

The product of its digits is 48384, while the sum is 39.

The square root of 1986474 is about 1409.4232863125. The cubic root of 1986474 is about 125.7074340766.

The spelling of 1986474 in words is "one million, nine hundred eighty-six thousand, four hundred seventy-four".