2442981 has 4 divisors (see below), whose sum is σ = 3257312. Its totient is φ = 1628652.

The previous prime is 2442977. The next prime is 2443027. The reversal of 2442981 is 1892442.

2442981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2442981 - 2² = 2442977 is a prime.

It is a super-2 number, since 2×2442981² = 11936312332722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2442911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407161 + ... + 407166.

It is an arithmetic number, because the mean of its divisors is an integer number (814328).

2^2442981 is an apocalyptic number.

It is an amenable number.

2442981 is a deficient number, since it is larger than the sum of its proper divisors (814331).

2442981 is an equidigital number, since it uses as much as digits as its factorization.

2442981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814330.

The product of its digits is 4608, while the sum is 30.

The square root of 2442981 is about 1563.0038387669. The cubic root of 2442981 is about 134.6811129107.

The spelling of 2442981 in words is "two million, four hundred forty-two thousand, nine hundred eighty-one".