2361641 has 4 divisors (see below), whose sum is σ = 2419284. Its totient is φ = 2304000.

The previous prime is 2361637. The next prime is 2361649. The reversal of 2361641 is 1461632.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1430416 + 931225 = 1196^2 + 965^2 .

It is a cyclic number.

It is not a de Polignac number, because 2361641 - 2² = 2361637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2361649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28760 + ... + 28841.

It is an arithmetic number, because the mean of its divisors is an integer number (604821).

2^2361641 is an apocalyptic number.

It is an amenable number.

2361641 is a deficient number, since it is larger than the sum of its proper divisors (57643).

2361641 is an equidigital number, since it uses as much as digits as its factorization.

2361641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57642.

The product of its digits is 864, while the sum is 23.

The square root of 2361641 is about 1536.7631567681. The cubic root of 2361641 is about 133.1694563038.

Subtracting from 2361641 its reverse (1461632), we obtain a palindrome (900009).

It can be divided in two parts, 23616 and 41, that multiplied together give a square (968256 = 984²).

The spelling of 2361641 in words is "two million, three hundred sixty-one thousand, six hundred forty-one".