2478544 has 20 divisors (see below), whose sum is σ = 4854724. Its totient is φ = 1225728.

The previous prime is 2478529. The next prime is 2478547. The reversal of 2478544 is 4458742.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 788544 + 1690000 = 888^2 + 1300^2 .

It is a super-2 number, since 2×2478544² = 12286360719872, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 4 + 7³ + 8³ + 5⁹ + 4² + 4⁴ .

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754 + ... + 2350.

2^2478544 is an apocalyptic number.

It is an amenable number.

2478544 is a deficient number, since it is larger than the sum of its proper divisors (2376180).

2478544 is a wasteful number, since it uses less digits than its factorization.

2478544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702 (or 1696 counting only the distinct ones).

The product of its digits is 35840, while the sum is 34.

The square root of 2478544 is about 1574.3392264693. The cubic root of 2478544 is about 135.3314944436.

The spelling of 2478544 in words is "two million, four hundred seventy-eight thousand, five hundred forty-four".