2488778 has 8 divisors (see below), whose sum is σ = 3755268. Its totient is φ = 1237024.

The previous prime is 2488777. The next prime is 2488781. The reversal of 2488778 is 8778842.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2486929 + 1849 = 1577^2 + 43^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2488771) 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, 3251 + ... + 3942.

2^2488778 is an apocalyptic number.

2488778 is a deficient number, since it is larger than the sum of its proper divisors (1266490).

2488778 is a wasteful number, since it uses less digits than its factorization.

2488778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7368.

The product of its digits is 200704, while the sum is 44.

The square root of 2488778 is about 1577.5861307707. The cubic root of 2488778 is about 135.5175015860.

Subtracting 2488778 from its reverse (8778842), we obtain a square (6290064 = 2508²).

The spelling of 2488778 in words is "two million, four hundred eighty-eight thousand, seven hundred seventy-eight".