40490006329 has 2 divisors, whose sum is σ = 40490006330. Its totient is φ = 40490006328.

The previous prime is 40490006273. The next prime is 40490006363. The reversal of 40490006329 is 92360009404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22395721104 + 18094285225 = 149652^2 + 134515^2 .

It is a cyclic number.

It is not a de Polignac number, because 40490006329 - 2²¹ = 40487909177 is a prime.

It is a super-2 number, since 2×40490006329² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40490006369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20245003164 + 20245003165.

It is an arithmetic number, because the mean of its divisors is an integer number (20245003165).

Almost surely, 2^40490006329 is an apocalyptic number.

It is an amenable number.

40490006329 is a deficient number, since it is larger than the sum of its proper divisors (1).

40490006329 is an equidigital number, since it uses as much as digits as its factorization.

40490006329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 40490006329 in words is "forty billion, four hundred ninety million, six thousand, three hundred twenty-nine".