7000128 has 56 divisors (see below), whose sum is σ = 20584160. Its totient is φ = 2332800.

The previous prime is 7000127. The next prime is 7000129. The reversal of 7000128 is 8210007.

It is an interprime number because it is at equal distance from previous prime (7000127) and next prime (7000129).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 7000128.

It is not an unprimeable number, because it can be changed into a prime (7000121) 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, 298 + ... + 3753.

Almost surely, 2^7000128 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 7000128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10292080).

7000128 is an abundant number, since it is smaller than the sum of its proper divisors (13584032).

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

7000128 is a wasteful number, since it uses less digits than its factorization.

7000128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4072 (or 4056 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 7000128 is about 2645.7755006803. The cubic root of 7000128 is about 191.2942842472.

The spelling of 7000128 in words is "seven million, one hundred twenty-eight", and thus it is an aban number.