4507128 has 48 divisors (see below), whose sum is σ = 12425400. Its totient is φ = 1475520.

The previous prime is 4507099. The next prime is 4507133. The reversal of 4507128 is 8217054.

It is a Cunningham number, because it is equal to 2123²-1.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3718 + ... + 4778.

Almost surely, 2^4507128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4507128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6212700).

4507128 is an abundant number, since it is smaller than the sum of its proper divisors (7918272).

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

4507128 is a wasteful number, since it uses less digits than its factorization.

4507128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 4507128 is about 2122.9997644842. Note that the first 3 decimals coincide. The cubic root of 4507128 is about 165.1834873383.

The spelling of 4507128 in words is "four million, five hundred seven thousand, one hundred twenty-eight".