2356841 has 4 divisors (see below), whose sum is σ = 2377812. Its totient is φ = 2335872.

The previous prime is 2356831. The next prime is 2356843. The reversal of 2356841 is 1486532.

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 1155625 + 1201216 = 1075^2 + 1096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2356841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2356843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10316 + ... + 10541.

It is an arithmetic number, because the mean of its divisors is an integer number (594453).

2^2356841 is an apocalyptic number.

It is an amenable number.

2356841 is a deficient number, since it is larger than the sum of its proper divisors (20971).

2356841 is a wasteful number, since it uses less digits than its factorization.

2356841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20970.

The product of its digits is 5760, while the sum is 29.

The square root of 2356841 is about 1535.2006383532. The cubic root of 2356841 is about 133.0791734674.

The spelling of 2356841 in words is "two million, three hundred fifty-six thousand, eight hundred forty-one".