2492281 has 4 divisors (see below), whose sum is σ = 2718864. Its totient is φ = 2265700.

The previous prime is 2492279. The next prime is 2492299. The reversal of 2492281 is 1822942.

2492281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is the 645-th star number.

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 a cyclic number.

It is not a de Polignac number, because 2492281 - 2¹ = 2492279 is a prime.

It is a super-2 number, since 2×2492281² = 12422929165922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2492201) 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, 113275 + ... + 113296.

It is an arithmetic number, because the mean of its divisors is an integer number (679716).

2^2492281 is an apocalyptic number.

It is an amenable number.

2492281 is a deficient number, since it is larger than the sum of its proper divisors (226583).

2492281 is a wasteful number, since it uses less digits than its factorization.

2492281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226582.

The product of its digits is 2304, while the sum is 28.

The square root of 2492281 is about 1578.6959808652. The cubic root of 2492281 is about 135.5810528894.

The spelling of 2492281 in words is "two million, four hundred ninety-two thousand, two hundred eighty-one".