40433334320 has 20 divisors (see below), whose sum is σ = 94007502480. Its totient is φ = 16173333696.

The previous prime is 40433334307. The next prime is 40433334329. The reversal of 40433334320 is 2343333404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (40433334329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252708260 + ... + 252708419.

It is an arithmetic number, because the mean of its divisors is an integer number (4700375124).

Almost surely, 2^40433334320 is an apocalyptic number.

40433334320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40433334320 is an abundant number, since it is smaller than the sum of its proper divisors (53574168160).

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

40433334320 is a wasteful number, since it uses less digits than its factorization.

40433334320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505416692 (or 505416686 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 29.

Adding to 40433334320 its reverse (2343333404), we get a palindrome (42776667724).

The spelling of 40433334320 in words is "forty billion, four hundred thirty-three million, three hundred thirty-four thousand, three hundred twenty".