40041400349 has 2 divisors, whose sum is σ = 40041400350. Its totient is φ = 40041400348.

The previous prime is 40041400297. The next prime is 40041400363. The reversal of 40041400349 is 94300414004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35510764249 + 4530636100 = 188443^2 + 67310^2 .

It is a cyclic number.

It is not a de Polignac number, because 40041400349 - 2¹² = 40041396253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40041403349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20020700174 + 20020700175.

It is an arithmetic number, because the mean of its divisors is an integer number (20020700175).

Almost surely, 2^40041400349 is an apocalyptic number.

It is an amenable number.

40041400349 is a deficient number, since it is larger than the sum of its proper divisors (1).

40041400349 is an equidigital number, since it uses as much as digits as its factorization.

40041400349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 40041400349 in words is "forty billion, forty-one million, four hundred thousand, three hundred forty-nine".