2478228 has 12 divisors (see below), whose sum is σ = 5782560. Its totient is φ = 826072.

The previous prime is 2478221. The next prime is 2478239. The reversal of 2478228 is 8228742.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2478228² = 12283228039968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478221) 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, 103248 + ... + 103271.

It is an arithmetic number, because the mean of its divisors is an integer number (481880).

2^2478228 is an apocalyptic number.

It is an amenable number.

2478228 is an abundant number, since it is smaller than the sum of its proper divisors (3304332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2478228 is a wasteful number, since it uses less digits than its factorization.

2478228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206526 (or 206524 counting only the distinct ones).

The product of its digits is 14336, while the sum is 33.

The square root of 2478228 is about 1574.2388637053. The cubic root of 2478228 is about 135.3257428720.

The spelling of 2478228 in words is "two million, four hundred seventy-eight thousand, two hundred twenty-eight".