2081662 has 8 divisors (see below), whose sum is σ = 3406392.
Its totient is φ = 946200.
The previous prime is 2081647. The next prime is 2081671. The reversal of 2081662 is 2661802.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47289 + ... + 47332.
It is an arithmetic number, because the mean of its divisors is an integer number (425799).
22081662 is an apocalyptic number.
2081662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
2081662 is a deficient number, since it is larger than the sum of its proper divisors (1324730).
2081662 is a wasteful number, since it uses less digits than its factorization.
2081662 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 94634.
The product of its (nonzero) digits is 1152, while the sum is 25.
The square root of 2081662 is about 1442.7965899599.
The cubic root of 2081662 is about 127.6840760351.
It can be divided in two parts, 208 and 1662, that multiplied together give a triangular number (345696 = T831).
The spelling of 2081662 in words is "two million, eighty-one thousand, six hundred sixty-two".