4000230 has 72 divisors (see below), whose sum is σ = 11305008. Its totient is φ = 980928.

The previous prime is 4000189. The next prime is 4000237. The reversal of 4000230 is 320004.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000237) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15079 + ... + 15341.

It is an arithmetic number, because the mean of its divisors is an integer number (157014).

Almost surely, 2^4000230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4000230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5652504).

4000230 is an abundant number, since it is smaller than the sum of its proper divisors (7304778).

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

4000230 is a wasteful number, since it uses less digits than its factorization.

4000230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 4000230 is about 2000.0574991735. The cubic root of 4000230 is about 158.7431476572.

Subtracting from 4000230 its product of nonzero digits (24), we obtain a triangular number (4000206 = T₂₈₂₈).

Adding to 4000230 its reverse (320004), we get a palindrome (4320234).

The spelling of 4000230 in words is "four million, two hundred thirty", and thus it is an aban number.