40708308169 has 9 divisors (see below), whose sum is σ = 41189013127. Its totient is φ = 40233156304.

The previous prime is 40708308131. The next prime is 40708308181. The reversal of 40708308169 is 96180380704.

It is a happy number.

The square root of 40708308169 is 201763.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7816858569 + 32891449600 = 88413^2 + 181360^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40708308169 is a prime.

It is a super-2 number, since 2×40708308169² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40708308569) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17955774 + ... + 17958040.

Almost surely, 2^40708308169 is an apocalyptic number.

40708308169 is the 201763-rd square number.

40708308169 is the 100882-nd centered octagonal number.

It is an amenable number.

40708308169 is a deficient number, since it is larger than the sum of its proper divisors (480704958).

40708308169 is an frugal number, since it uses more digits than its factorization.

40708308169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712 (or 2356 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 40708308169 in words is "forty billion, seven hundred eight million, three hundred eight thousand, one hundred sixty-nine".