40214444393 has 2 divisors, whose sum is σ = 40214444394. Its totient is φ = 40214444392.

The previous prime is 40214444381. The next prime is 40214444437. The reversal of 40214444393 is 39344441204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21477488704 + 18736955689 = 146552^2 + 136883^2 .

It is a cyclic number.

It is not a de Polignac number, because 40214444393 - 2²⁴ = 40197667177 is a prime.

It is a super-3 number, since 3×40214444393³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (40214444293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20107222196 + 20107222197.

It is an arithmetic number, because the mean of its divisors is an integer number (20107222197).

Almost surely, 2^40214444393 is an apocalyptic number.

It is an amenable number.

40214444393 is a deficient number, since it is larger than the sum of its proper divisors (1).

40214444393 is an equidigital number, since it uses as much as digits as its factorization.

40214444393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 38.

Adding to 40214444393 its reverse (39344441204), we get a palindrome (79558885597).

The spelling of 40214444393 in words is "forty billion, two hundred fourteen million, four hundred forty-four thousand, three hundred ninety-three".