2001622 has 8 divisors (see below), whose sum is σ = 3431376. Its totient is φ = 857832.

The previous prime is 2001619. The next prime is 2001641. The reversal of 2001622 is 2261002.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71473 + ... + 71500.

It is an arithmetic number, because the mean of its divisors is an integer number (428922).

2^2001622 is an apocalyptic number.

2001622 is a deficient number, since it is larger than the sum of its proper divisors (1429754).

2001622 is a wasteful number, since it uses less digits than its factorization.

2001622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142982.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2001622 is about 1414.7869097500. The cubic root of 2001622 is about 126.0261556518.

Adding to 2001622 its reverse (2261002), we get a palindrome (4262624).

The spelling of 2001622 in words is "two million, one thousand, six hundred twenty-two".