40402032971 has 2 divisors, whose sum is σ = 40402032972. Its totient is φ = 40402032970.

The previous prime is 40402032959. The next prime is 40402033019. The reversal of 40402032971 is 17923020404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40402032971 - 2²⁶ = 40334924107 is a prime.

It is not a weakly prime, because it can be changed into another prime (40402032071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20201016485 + 20201016486.

It is an arithmetic number, because the mean of its divisors is an integer number (20201016486).

Almost surely, 2^40402032971 is an apocalyptic number.

40402032971 is a deficient number, since it is larger than the sum of its proper divisors (1).

40402032971 is an equidigital number, since it uses as much as digits as its factorization.

40402032971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 40402032971 in words is "forty billion, four hundred two million, thirty-two thousand, nine hundred seventy-one".