4640128 has 16 divisors (see below), whose sum is σ = 9244260. Its totient is φ = 2320000.

The previous prime is 4640117. The next prime is 4640131. The reversal of 4640128 is 8210464.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17998 + ... + 18253.

Almost surely, 2^4640128 is an apocalyptic number.

It is an amenable number.

4640128 is a deficient number, since it is larger than the sum of its proper divisors (4604132).

4640128 is an equidigital number, since it uses as much as digits as its factorization.

4640128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36265 (or 36253 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 4640128 is about 2154.0956339030. The cubic root of 4640128 is about 166.7925520045.

The spelling of 4640128 in words is "four million, six hundred forty thousand, one hundred twenty-eight".