403440230000 has 200 divisors, whose sum is σ = 1020226360560. Its totient is φ = 154344960000.

The previous prime is 403440229993. The next prime is 403440230027. The reversal of 403440230000 is 32044304.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 21820760 + ... + 21839240.

Almost surely, 2^403440230000 is an apocalyptic number.

403440230000 is a gapful number since it is divisible by the number (40) 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 403440230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510113180280).

403440230000 is an abundant number, since it is smaller than the sum of its proper divisors (616786130560).

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

403440230000 is a wasteful number, since it uses less digits than its factorization.

403440230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18605 (or 18584 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 403440230000 its reverse (32044304), we get a palindrome (403472274304).

The spelling of 403440230000 in words is "four hundred three billion, four hundred forty million, two hundred thirty thousand".