40043344040 has 64 divisors (see below), whose sum is σ = 102995832960. Its totient is φ = 13725515520.

The previous prime is 40043344009. The next prime is 40043344063. The reversal of 40043344040 is 4044334004.

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, 1176299 + ... + 1209861.

It is an arithmetic number, because the mean of its divisors is an integer number (1609309890).

Almost surely, 2^40043344040 is an apocalyptic number.

40043344040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40043344040 is an abundant number, since it is smaller than the sum of its proper divisors (62952488920).

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

40043344040 is a wasteful number, since it uses less digits than its factorization.

40043344040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37842 (or 37838 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 40043344040 its reverse (4044334004), we get a palindrome (44087678044).

The spelling of 40043344040 in words is "forty billion, forty-three million, three hundred forty-four thousand, forty".