4001662 has 16 divisors (see below), whose sum is σ = 6900192. Its totient is φ = 1704960.

The previous prime is 4001639. The next prime is 4001689. The reversal of 4001662 is 2661004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1962 + ... + 3442.

It is an arithmetic number, because the mean of its divisors is an integer number (431262).

Almost surely, 2^4001662 is an apocalyptic number.

4001662 is a deficient number, since it is larger than the sum of its proper divisors (2898530).

4001662 is a wasteful number, since it uses less digits than its factorization.

4001662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4001662 is about 2000.4154568489. The cubic root of 4001662 is about 158.7620876571.

Adding to 4001662 its reverse (2661004), we get a palindrome (6662666).

The spelling of 4001662 in words is "four million, one thousand, six hundred sixty-two".