1331662 has 8 divisors (see below), whose sum is σ = 2002392. Its totient is φ = 664200.

The previous prime is 1331657. The next prime is 1331663. The reversal of 1331662 is 2661331.

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 (1331663) 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, 1212 + ... + 2032.

It is an arithmetic number, because the mean of its divisors is an integer number (250299).

2^1331662 is an apocalyptic number.

1331662 is a deficient number, since it is larger than the sum of its proper divisors (670730).

1331662 is an equidigital number, since it uses as much as digits as its factorization.

1331662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634.

The product of its digits is 648, while the sum is 22.

The square root of 1331662 is about 1153.9766028824. The cubic root of 1331662 is about 110.0182338919.

Adding to 1331662 its reverse (2661331), we get a palindrome (3992993).

The spelling of 1331662 in words is "one million, three hundred thirty-one thousand, six hundred sixty-two".