40238702005 has 16 divisors (see below), whose sum is σ = 48615665904. Its totient is φ = 31971663360.

The previous prime is 40238702003. The next prime is 40238702011. The reversal of 40238702005 is 50020783204.

It can be written as a sum of positive squares in 8 ways, for example, as 2556515844 + 37682186161 = 50562^2 + 194119^2 .

It is not a de Polignac number, because 40238702005 - 2¹ = 40238702003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40238702003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1968819 + ... + 1989151.

It is an arithmetic number, because the mean of its divisors is an integer number (3038479119).

Almost surely, 2^40238702005 is an apocalyptic number.

It is an amenable number.

40238702005 is a deficient number, since it is larger than the sum of its proper divisors (8376963899).

40238702005 is a wasteful number, since it uses less digits than its factorization.

40238702005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23016.

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 40238702005 in words is "forty billion, two hundred thirty-eight million, seven hundred two thousand, five".