40331344020 has 48 divisors (see below), whose sum is σ = 123193925568. Its totient is φ = 9777295360.

The previous prime is 40331343991. The next prime is 40331344033. The reversal of 40331344020 is 2044313304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30553389 + ... + 30554708.

It is an arithmetic number, because the mean of its divisors is an integer number (2566540116).

Almost surely, 2^40331344020 is an apocalyptic number.

It is an amenable number.

40331344020 is an abundant number, since it is smaller than the sum of its proper divisors (82862581548).

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

40331344020 is a wasteful number, since it uses less digits than its factorization.

40331344020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61108120 (or 61108118 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 40331344020 its reverse (2044313304), we get a palindrome (42375657324).

The spelling of 40331344020 in words is "forty billion, three hundred thirty-one million, three hundred forty-four thousand, twenty".