2001652 has 6 divisors (see below), whose sum is σ = 3502898. Its totient is φ = 1000824.

The previous prime is 2001641. The next prime is 2001653. The reversal of 2001652 is 2561002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1920996 + 80656 = 1386^2 + 284^2 .

It is a super-2 number, since 2×2001652² = 8013221458208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250203 + ... + 250210.

2^2001652 is an apocalyptic number.

It is an amenable number.

2001652 is a deficient number, since it is larger than the sum of its proper divisors (1501246).

2001652 is a wasteful number, since it uses less digits than its factorization.

2001652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500417 (or 500415 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2001652 is about 1414.7975120136. The cubic root of 2001652 is about 126.0267852688.

Adding to 2001652 its reverse (2561002), we get a palindrome (4562654).

The spelling of 2001652 in words is "two million, one thousand, six hundred fifty-two".