40303397903293 has 12 divisors (see below), whose sum is σ = 47525784839580. Its totient is φ = 34072539907392.

The previous prime is 40303397903291. The next prime is 40303397903309. The reversal of 40303397903293 is 39230979330304.

It can be written as a sum of positive squares in 2 ways, for example, as 27962383474809 + 12341014428484 = 5287947^2 + 3512978^2 .

It is not a de Polignac number, because 40303397903293 - 2¹ = 40303397903291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303397903291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5633683578 + ... + 5633690731.

It is an arithmetic number, because the mean of its divisors is an integer number (3960482069965).

Almost surely, 2^{40303397903293} is an apocalyptic number.

It is an amenable number.

40303397903293 is a deficient number, since it is larger than the sum of its proper divisors (7222386936287).

40303397903293 is a wasteful number, since it uses less digits than its factorization.

40303397903293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11267374396 (or 11267374389 counting only the distinct ones).

The product of its (nonzero) digits is 9920232, while the sum is 55.

The spelling of 40303397903293 in words is "forty trillion, three hundred three billion, three hundred ninety-seven million, nine hundred three thousand, two hundred ninety-three".