2441781 has 12 divisors (see below), whose sum is σ = 3564652. Its totient is φ = 1610496.

The previous prime is 2441779. The next prime is 2441801. The reversal of 2441781 is 1871442.

It can be written as a sum of positive squares in 2 ways, for example, as 1461681 + 980100 = 1209^2 + 990^2 .

It is not a de Polignac number, because 2441781 - 2¹ = 2441779 is a prime.

It is a super-2 number, since 2×2441781² = 11924588903922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2441581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 526 + ... + 2271.

2^2441781 is an apocalyptic number.

It is an amenable number.

2441781 is a deficient number, since it is larger than the sum of its proper divisors (1122871).

2441781 is a wasteful number, since it uses less digits than its factorization.

2441781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2900 (or 2897 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 2441781 is about 1562.6199153985. The cubic root of 2441781 is about 134.6590573694.

It can be divided in two parts, 244 and 1781, that added together give a square (2025 = 45²).

The spelling of 2441781 in words is "two million, four hundred forty-one thousand, seven hundred eighty-one".