40385652417 has 24 divisors (see below), whose sum is σ = 65117958048. Its totient is φ = 23906937600.

The previous prime is 40385652409. The next prime is 40385652427. The reversal of 40385652417 is 71425658304.

40385652417 is a `hidden beast` number, since 40 + 3 + 8 + 565 + 2 + 41 + 7 = 666.

It is not a de Polignac number, because 40385652417 - 2³ = 40385652409 is a prime.

It is a super-2 number, since 2×40385652417² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40385652427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4739184 + ... + 4747697.

It is an arithmetic number, because the mean of its divisors is an integer number (2713248252).

Almost surely, 2^40385652417 is an apocalyptic number.

It is an amenable number.

40385652417 is a deficient number, since it is larger than the sum of its proper divisors (24732305631).

40385652417 is a wasteful number, since it uses less digits than its factorization.

40385652417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9486941 (or 9486938 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 40385652417 in words is "forty billion, three hundred eighty-five million, six hundred fifty-two thousand, four hundred seventeen".