2428778 has 16 divisors (see below), whose sum is σ = 4051296. Its totient is φ = 1082640.

The previous prime is 2428771. The next prime is 2428781. The reversal of 2428778 is 8778242.

2428778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2428771) 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 7 ways as a sum of consecutive naturals, for example, 125 + ... + 2207.

It is an arithmetic number, because the mean of its divisors is an integer number (253206).

2^2428778 is an apocalyptic number.

2428778 is a deficient number, since it is larger than the sum of its proper divisors (1622518).

2428778 is a wasteful number, since it uses less digits than its factorization.

2428778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149.

The product of its digits is 50176, while the sum is 38.

The square root of 2428778 is about 1558.4537208400. The cubic root of 2428778 is about 134.4196025003.

The spelling of 2428778 in words is "two million, four hundred twenty-eight thousand, seven hundred seventy-eight".