2478291 has 4 divisors (see below), whose sum is σ = 3304392. Its totient is φ = 1652192.

The previous prime is 2478271. The next prime is 2478293. The reversal of 2478291 is 1928742.

It is a happy number.

2478291 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.

It is a cyclic number.

It is not a de Polignac number, because 2478291 - 2¹³ = 2470099 is a prime.

It is a super-2 number, since 2×2478291² = 12283852561362, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2478293) 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, 413046 + ... + 413051.

It is an arithmetic number, because the mean of its divisors is an integer number (826098).

2^2478291 is an apocalyptic number.

2478291 is a deficient number, since it is larger than the sum of its proper divisors (826101).

2478291 is an equidigital number, since it uses as much as digits as its factorization.

2478291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826100.

The product of its digits is 8064, while the sum is 33.

The square root of 2478291 is about 1574.2588732480. The cubic root of 2478291 is about 135.3268895851.

The spelling of 2478291 in words is "two million, four hundred seventy-eight thousand, two hundred ninety-one".