4809128 has 32 divisors (see below), whose sum is σ = 9828000. Its totient is φ = 2197440.

The previous prime is 4809121. The next prime is 4809137. The reversal of 4809128 is 8219084.

4809128 = 262² + 263² + ... + 318².

It is a happy number.

It is a super-3 number, since 3×4809128³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4809094 and 4809103.

It is not an unprimeable number, because it can be changed into a prime (4809121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3863 + ... + 4953.

It is an arithmetic number, because the mean of its divisors is an integer number (307125).

Almost surely, 2^4809128 is an apocalyptic number.

It is an amenable number.

4809128 is an abundant number, since it is smaller than the sum of its proper divisors (5018872).

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

4809128 is a wasteful number, since it uses less digits than its factorization.

4809128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 4809128 is about 2192.9724120472. The cubic root of 4809128 is about 168.7933938701.

The spelling of 4809128 in words is "four million, eight hundred nine thousand, one hundred twenty-eight".