40434660645 has 8 divisors (see below), whose sum is σ = 64695457056. Its totient is φ = 21565152336.

The previous prime is 40434660631. The next prime is 40434660671. The reversal of 40434660645 is 54606643404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40434660645 - 2¹⁶ = 40434595109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40434660597 and 40434660606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347822007 + ... + 1347822036.

It is an arithmetic number, because the mean of its divisors is an integer number (8086932132).

Almost surely, 2^40434660645 is an apocalyptic number.

It is an amenable number.

40434660645 is a deficient number, since it is larger than the sum of its proper divisors (24260796411).

40434660645 is a wasteful number, since it uses less digits than its factorization.

40434660645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695644051.

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 40434660645 in words is "forty billion, four hundred thirty-four million, six hundred sixty thousand, six hundred forty-five".