2478808 has 8 divisors (see below), whose sum is σ = 4647780. Its totient is φ = 1239400.

The previous prime is 2478803. The next prime is 2478809. The reversal of 2478808 is 8088742.

2478808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2478808² = 12288978201728, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478803) 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 as a sum of consecutive naturals, namely, 154918 + ... + 154933.

2^2478808 is an apocalyptic number.

It is an amenable number.

2478808 is a deficient number, since it is larger than the sum of its proper divisors (2168972).

2478808 is a wasteful number, since it uses less digits than its factorization.

2478808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309857 (or 309853 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 2478808 is about 1574.4230689367. The cubic root of 2478808 is about 135.3362991792.

The spelling of 2478808 in words is "two million, four hundred seventy-eight thousand, eight hundred eight".