2478841 has 4 divisors (see below), whose sum is σ = 2482000. Its totient is φ = 2475684.

The previous prime is 2478809. The next prime is 2478877. The reversal of 2478841 is 1488742.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1488742 = 2 ⋅744371.

It is a cyclic number.

It is not a de Polignac number, because 2478841 - 2⁵ = 2478809 is a prime.

It is a super-2 number, since 2×2478841² = 12289305406562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2478797 and 2478806.

It is not an unprimeable number, because it can be changed into a prime (2478041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610 + ... + 2308.

It is an arithmetic number, because the mean of its divisors is an integer number (620500).

2^2478841 is an apocalyptic number.

It is an amenable number.

2478841 is a deficient number, since it is larger than the sum of its proper divisors (3159).

2478841 is a wasteful number, since it uses less digits than its factorization.

2478841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158.

The product of its digits is 14336, while the sum is 34.

The square root of 2478841 is about 1574.4335489312. The cubic root of 2478841 is about 135.3368997472.

Subtracting from 2478841 its reverse (1488742), we obtain a palindrome (990099).

The spelling of 2478841 in words is "two million, four hundred seventy-eight thousand, eight hundred forty-one".