40030684705 has 12 divisors (see below), whose sum is σ = 52800804756. Its totient is φ = 29113224800.

The previous prime is 40030684667. The next prime is 40030684709. The reversal of 40030684705 is 50748603004.

It can be written as a sum of positive squares in 2 ways, for example, as 24577459984 + 15453224721 = 156772^2 + 124311^2 .

It is not a de Polignac number, because 40030684705 - 2²¹ = 40028587553 is a prime.

It is a super-2 number, since 2×40030684705² (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 (40030684709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33082606 + ... + 33083815.

It is an arithmetic number, because the mean of its divisors is an integer number (4400067063).

Almost surely, 2^40030684705 is an apocalyptic number.

It is an amenable number.

40030684705 is a deficient number, since it is larger than the sum of its proper divisors (12770120051).

40030684705 is a wasteful number, since it uses less digits than its factorization.

40030684705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66166448 (or 66166437 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 40030684705 in words is "forty billion, thirty million, six hundred eighty-four thousand, seven hundred five".