40333240444 has 72 divisors (see below), whose sum is σ = 83941607232. Its totient is φ = 16900208640.

The previous prime is 40333240429. The next prime is 40333240471. The reversal of 40333240444 is 44404233304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12535924 + ... + 12539140.

It is an arithmetic number, because the mean of its divisors is an integer number (1165855656).

Almost surely, 2^40333240444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40333240444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41970803616).

40333240444 is an abundant number, since it is smaller than the sum of its proper divisors (43608366788).

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

40333240444 is a wasteful number, since it uses less digits than its factorization.

40333240444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4643 (or 4634 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 40333240444 its reverse (44404233304), we get a palindrome (84737473748).

The spelling of 40333240444 in words is "forty billion, three hundred thirty-three million, two hundred forty thousand, four hundred forty-four".