2442281 has 4 divisors (see below), whose sum is σ = 2466564. Its totient is φ = 2418000.

The previous prime is 2442263. The next prime is 2442287. The reversal of 2442281 is 1822442.

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 2128681 + 313600 = 1459^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 2442281 - 2¹⁴ = 2425897 is a prime.

It is a super-2 number, since 2×2442281² = 11929472965922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2442287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11990 + ... + 12191.

It is an arithmetic number, because the mean of its divisors is an integer number (616641).

2^2442281 is an apocalyptic number.

It is an amenable number.

2442281 is a deficient number, since it is larger than the sum of its proper divisors (24283).

2442281 is a wasteful number, since it uses less digits than its factorization.

2442281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24282.

The product of its digits is 1024, while the sum is 23.

The square root of 2442281 is about 1562.7798949308. The cubic root of 2442281 is about 134.6682480562.

The spelling of 2442281 in words is "two million, four hundred forty-two thousand, two hundred eighty-one".