2478546 has 64 divisors (see below), whose sum is σ = 6451200. Its totient is φ = 690768.

The previous prime is 2478529. The next prime is 2478547. The reversal of 2478546 is 6458742.

2478546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2478546² = 12286380548232, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 4² + 7² + 8 + 5⁹ + 4⁵ + 6² .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2478546.

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 (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29821 + ... + 29903.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^2478546 is an apocalyptic number.

2478546 is the 996-th heptagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2478546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3225600).

2478546 is an abundant number, since it is smaller than the sum of its proper divisors (3972654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2478546 is a wasteful number, since it uses less digits than its factorization.

2478546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 174 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 2478546 is about 1574.3398616563. The cubic root of 2478546 is about 135.3315308444.

The spelling of 2478546 in words is "two million, four hundred seventy-eight thousand, five hundred forty-six".