2478543 has 16 divisors (see below), whose sum is σ = 3532800. Its totient is φ = 1542240.

The previous prime is 2478529. The next prime is 2478547. The reversal of 2478543 is 3458742.

It is not a de Polignac number, because 2478543 - 2⁴ = 2478527 is a prime.

It is a super-2 number, since 2×2478543² = 12286350805698, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 4³ + 7 + 8 + 5⁹ + 4⁵ + 3³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478547) 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 15 ways as a sum of consecutive naturals, for example, 2238 + ... + 3156.

It is an arithmetic number, because the mean of its divisors is an integer number (220800).

2^2478543 is an apocalyptic number.

2478543 is a deficient number, since it is larger than the sum of its proper divisors (1054257).

2478543 is a wasteful number, since it uses less digits than its factorization.

2478543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982.

The product of its digits is 26880, while the sum is 33.

The square root of 2478543 is about 1574.3389088757. The cubic root of 2478543 is about 135.3314762432.

The spelling of 2478543 in words is "two million, four hundred seventy-eight thousand, five hundred forty-three".