40406731342443 has 24 divisors (see below), whose sum is σ = 58406000281200. Its totient is φ = 26919028105920.

The previous prime is 40406731342433. The next prime is 40406731342447. The reversal of 40406731342443 is 34424313760404.

40406731342443 is a `hidden beast` number, since 4 + 0 + 4 + 0 + 6 + 73 + 134 + 2 + 443 = 666.

It is not a de Polignac number, because 40406731342443 - 2⁴ = 40406731342427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40406731342447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314598105 + ... + 314726517.

It is an arithmetic number, because the mean of its divisors is an integer number (2433583345050).

Almost surely, 2^{40406731342443} is an apocalyptic number.

40406731342443 is a deficient number, since it is larger than the sum of its proper divisors (17999268938757).

40406731342443 is a wasteful number, since it uses less digits than its factorization.

40406731342443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152539 (or 152536 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 45.

The spelling of 40406731342443 in words is "forty trillion, four hundred six billion, seven hundred thirty-one million, three hundred forty-two thousand, four hundred forty-three".