404023340000 has 240 divisors, whose sum is σ = 1139344668000. Its totient is φ = 138108672000.

The previous prime is 404023339999. The next prime is 404023340003. The reversal of 404023340000 is 43320404.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404023340003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 48855866 + ... + 48864134.

It is an arithmetic number, because the mean of its divisors is an integer number (4747269450).

Almost surely, 2^404023340000 is an apocalyptic number.

404023340000 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 404023340000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569672334000).

404023340000 is an abundant number, since it is smaller than the sum of its proper divisors (735321328000).

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

404023340000 is an equidigital number, since it uses as much as digits as its factorization.

404023340000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8655 (or 8632 counting only the distinct ones).

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

Adding to 404023340000 its reverse (43320404), we get a palindrome (404066660404).

The spelling of 404023340000 in words is "four hundred four billion, twenty-three million, three hundred forty thousand".