40001304169 has 2 divisors, whose sum is σ = 40001304170. Its totient is φ = 40001304168.

The previous prime is 40001304139. The next prime is 40001304229. The reversal of 40001304169 is 96140310004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27518828544 + 12482475625 = 165888^2 + 111725^2 .

It is a cyclic number.

It is not a de Polignac number, because 40001304169 - 2¹³ = 40001295977 is a prime.

It is a super-2 number, since 2×40001304169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40001304139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20000652084 + 20000652085.

It is an arithmetic number, because the mean of its divisors is an integer number (20000652085).

Almost surely, 2^40001304169 is an apocalyptic number.

It is an amenable number.

40001304169 is a deficient number, since it is larger than the sum of its proper divisors (1).

40001304169 is an equidigital number, since it uses as much as digits as its factorization.

40001304169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 40001304169 in words is "forty billion, one million, three hundred four thousand, one hundred sixty-nine".