1662012 has 48 divisors (see below), whose sum is σ = 4704000. Its totient is φ = 503280.

The previous prime is 1662007. The next prime is 1662013. The reversal of 1662012 is 2102661.

It is a happy number.

1662012 is a `hidden beast` number, since 1 + 662 + 0 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489 + ... + 1887.

It is an arithmetic number, because the mean of its divisors is an integer number (98000).

2^1662012 is an apocalyptic number.

1662012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1662012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2352000).

1662012 is an abundant number, since it is smaller than the sum of its proper divisors (3041988).

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

1662012 is a wasteful number, since it uses less digits than its factorization.

1662012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423 (or 1415 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1662012 is about 1289.1904436506. The cubic root of 1662012 is about 118.4526328874.

Adding to 1662012 its reverse (2102661), we get a palindrome (3764673).

The spelling of 1662012 in words is "one million, six hundred sixty-two thousand, twelve".