40244424061 has 2 divisors, whose sum is σ = 40244424062. Its totient is φ = 40244424060.

The previous prime is 40244424049. The next prime is 40244424089. The reversal of 40244424061 is 16042444204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25826418436 + 14418005625 = 160706^2 + 120075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40244424061 is a prime.

It is a super-2 number, since 2×40244424061² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40244424361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20122212030 + 20122212031.

It is an arithmetic number, because the mean of its divisors is an integer number (20122212031).

Almost surely, 2^40244424061 is an apocalyptic number.

It is an amenable number.

40244424061 is a deficient number, since it is larger than the sum of its proper divisors (1).

40244424061 is an equidigital number, since it uses as much as digits as its factorization.

40244424061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 40244424061 its reverse (16042444204), we get a palindrome (56286868265).

The spelling of 40244424061 in words is "forty billion, two hundred forty-four million, four hundred twenty-four thousand, sixty-one".