40242224437 has 2 divisors, whose sum is σ = 40242224438. Its totient is φ = 40242224436.

The previous prime is 40242224423. The next prime is 40242224489. The reversal of 40242224437 is 73442224204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40015601521 + 226622916 = 200039^2 + 15054^2 .

It is a cyclic number.

It is not a de Polignac number, because 40242224437 - 2²⁷ = 40108006709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40242224497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20121112218 + 20121112219.

It is an arithmetic number, because the mean of its divisors is an integer number (20121112219).

Almost surely, 2^40242224437 is an apocalyptic number.

It is an amenable number.

40242224437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40242224437 is an equidigital number, since it uses as much as digits as its factorization.

40242224437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 34.

The spelling of 40242224437 in words is "forty billion, two hundred forty-two million, two hundred twenty-four thousand, four hundred thirty-seven".