1662396 has 48 divisors (see below), whose sum is σ = 4263840. Its totient is φ = 501760.

The previous prime is 1662389. The next prime is 1662403. The reversal of 1662396 is 6932661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1662389) and next prime (1662403).

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 5776 + ... + 6056.

It is an arithmetic number, because the mean of its divisors is an integer number (88830).

2^1662396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1662396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2131920).

1662396 is an abundant number, since it is smaller than the sum of its proper divisors (2601444).

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

1662396 is a wasteful number, since it uses less digits than its factorization.

1662396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 332 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 1662396 is about 1289.3393657218. The cubic root of 1662396 is about 118.4617548249.

The spelling of 1662396 in words is "one million, six hundred sixty-two thousand, three hundred ninety-six".