40534320044 has 12 divisors (see below), whose sum is σ = 71345090544. Its totient is φ = 20150008464.

The previous prime is 40534319941. The next prime is 40534320077. The reversal of 40534320044 is 44002343504.

It is a super-2 number, since 2×40534320044² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40534319989 and 40534320016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29287112 + ... + 29288495.

It is an arithmetic number, because the mean of its divisors is an integer number (5945424212).

Almost surely, 2^40534320044 is an apocalyptic number.

It is an amenable number.

40534320044 is a deficient number, since it is larger than the sum of its proper divisors (30810770500).

40534320044 is a wasteful number, since it uses less digits than its factorization.

40534320044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58575784 (or 58575782 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 40534320044 its reverse (44002343504), we get a palindrome (84536663548).

The spelling of 40534320044 in words is "forty billion, five hundred thirty-four million, three hundred twenty thousand, forty-four".