40303323320 has 64 divisors (see below), whose sum is σ = 97785364320. Its totient is φ = 14861827584.

The previous prime is 40303323253. The next prime is 40303323323. The reversal of 40303323320 is 2332330304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303323323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351827 + ... + 452093.

Almost surely, 2^40303323320 is an apocalyptic number.

40303323320 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 40303323320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48892682160).

40303323320 is an abundant number, since it is smaller than the sum of its proper divisors (57482041000).

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

40303323320 is a wasteful number, since it uses less digits than its factorization.

40303323320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101064 (or 101060 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 23.

Adding to 40303323320 its reverse (2332330304), we get a palindrome (42635653624).

The spelling of 40303323320 in words is "forty billion, three hundred three million, three hundred twenty-three thousand, three hundred twenty".