1662842 has 8 divisors (see below), whose sum is σ = 2625600. Its totient is φ = 787644.

The previous prime is 1662841. The next prime is 1662851. The reversal of 1662842 is 2482661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662841) 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, 21842 + ... + 21917.

It is an arithmetic number, because the mean of its divisors is an integer number (328200).

2^1662842 is an apocalyptic number.

1662842 is a deficient number, since it is larger than the sum of its proper divisors (962758).

1662842 is a wasteful number, since it uses less digits than its factorization.

1662842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43780.

The product of its digits is 4608, while the sum is 29.

The square root of 1662842 is about 1289.5123109145. The cubic root of 1662842 is about 118.4723478120.

The spelling of 1662842 in words is "one million, six hundred sixty-two thousand, eight hundred forty-two".