40012022437 has 2 divisors, whose sum is σ = 40012022438. Its totient is φ = 40012022436.

The previous prime is 40012022383. The next prime is 40012022497. The reversal of 40012022437 is 73422021004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22588286436 + 17423736001 = 150294^2 + 131999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40012022437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40012022497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20006011218 + 20006011219.

It is an arithmetic number, because the mean of its divisors is an integer number (20006011219).

Almost surely, 2^40012022437 is an apocalyptic number.

It is an amenable number.

40012022437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40012022437 is an equidigital number, since it uses as much as digits as its factorization.

40012022437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

The spelling of 40012022437 in words is "forty billion, twelve million, twenty-two thousand, four hundred thirty-seven".