4000500 has 144 divisors (see below), whose sum is σ = 14536704. Its totient is φ = 907200.

The previous prime is 4000489. The next prime is 4000511. The reversal of 4000500 is 50004.

4000500 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4000489) and next prime (4000511).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

4000500 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31437 + ... + 31563.

Almost surely, 2^4000500 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 4000500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7268352).

4000500 is an abundant number, since it is smaller than the sum of its proper divisors (10536204).

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

4000500 is a wasteful number, since it uses less digits than its factorization.

4000500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 9.

The square root of 4000500 is about 2000.1249960940. The cubic root of 4000500 is about 158.7467190923.

Adding to 4000500 its reverse (50004), we get a palindrome (4050504).

The spelling of 4000500 in words is "four million, five hundred", and thus it is an aban number.