2023641 has 24 divisors (see below), whose sum is σ = 3082560. Its totient is φ = 1277856.

The previous prime is 2023639. The next prime is 2023661. The reversal of 2023641 is 1463202.

It is a happy number.

2023641 is a `hidden beast` number, since 2 + 0 + 23 + 641 = 666.

It is not a de Polignac number, because 2023641 - 2¹ = 2023639 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2023621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19596 + ... + 19698.

It is an arithmetic number, because the mean of its divisors is an integer number (128440).

2^2023641 is an apocalyptic number.

It is an amenable number.

2023641 is a deficient number, since it is larger than the sum of its proper divisors (1058919).

2023641 is a wasteful number, since it uses less digits than its factorization.

2023641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2023641 is about 1422.5473630076. The cubic root of 2023641 is about 126.4865916100.

Adding to 2023641 its reverse (1463202), we get a palindrome (3486843).

The spelling of 2023641 in words is "two million, twenty-three thousand, six hundred forty-one".