2547428 has 12 divisors (see below), whose sum is σ = 4801020. Its totient is φ = 1175712.

The previous prime is 2547397. The next prime is 2547431. The reversal of 2547428 is 8247452.

It can be written as a sum of positive squares in 2 ways, for example, as 107584 + 2439844 = 328^2 + 1562^2 .

It is a d-powerful number, because it can be written as 2⁵ + 5⁹ + 4⁶ + 7³ + 4⁸ + 2¹⁹ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 2547394 and 2547403.

It is a congruent number.

It is an unprimeable number.

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, 24443 + ... + 24546.

It is an arithmetic number, because the mean of its divisors is an integer number (400085).

2^2547428 is an apocalyptic number.

It is an amenable number.

2547428 is a deficient number, since it is larger than the sum of its proper divisors (2253592).

2547428 is a wasteful number, since it uses less digits than its factorization.

2547428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49006 (or 49004 counting only the distinct ones).

The product of its digits is 17920, while the sum is 32.

The square root of 2547428 is about 1596.0664146582. The cubic root of 2547428 is about 136.5737725528.

The spelling of 2547428 in words is "two million, five hundred forty-seven thousand, four hundred twenty-eight".