2003230440 has 160 divisors (see below), whose sum is σ = 6783729480. Its totient is φ = 530178048.

The previous prime is 2003230433. The next prime is 2003230451. The reversal of 2003230440 is 440323002.

2003230440 is a `hidden beast` number, since 200 + 3 + 23 + 0 + 440 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 968578884 + 1034651556 = 31122^2 + 32166^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 441624 + ... + 446136.

Almost surely, 2^2003230440 is an apocalyptic number.

2003230440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2003230440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3391864740).

2003230440 is an abundant number, since it is smaller than the sum of its proper divisors (4780499040).

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

2003230440 is a wasteful number, since it uses less digits than its factorization.

2003230440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673 (or 4660 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 2003230440 is about 44757.4623945549. The cubic root of 2003230440 is about 1260.5990348869.

Adding to 2003230440 its reverse (440323002), we get a palindrome (2443553442).

The spelling of 2003230440 in words is "two billion, three million, two hundred thirty thousand, four hundred forty".