40003440089728 has 32 divisors (see below), whose sum is σ = 79695234010260. Its totient is φ = 20001499004928.

The previous prime is 40003440089671. The next prime is 40003440089737. The reversal of 40003440089728 is 82798004430004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 34246933959744 + 5756506129984 = 5852088^2 + 2399272^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×40003440089728² (a number of 28 digits) contains 22 as substring.

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, 10222726 + ... + 13583482.

Almost surely, 2^{40003440089728} is an apocalyptic number.

It is an amenable number.

40003440089728 is a deficient number, since it is larger than the sum of its proper divisors (39691793920532).

40003440089728 is an equidigital number, since it uses as much as digits as its factorization.

40003440089728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3453764 (or 3453752 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 40003440089728 in words is "forty trillion, three billion, four hundred forty million, eighty-nine thousand, seven hundred twenty-eight".