40287170429 has 16 divisors (see below), whose sum is σ = 46285447680. Its totient is φ = 34680083760.

The previous prime is 40287170393. The next prime is 40287170459. The reversal of 40287170429 is 92407178204.

It is a cyclic number.

It is not a de Polignac number, because 40287170429 - 2²⁰ = 40286121853 is a prime.

It is a super-2 number, since 2×40287170429² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40287170429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40287170459) 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, 390002 + ... + 482364.

It is an arithmetic number, because the mean of its divisors is an integer number (2892840480).

Almost surely, 2^40287170429 is an apocalyptic number.

It is an amenable number.

40287170429 is a deficient number, since it is larger than the sum of its proper divisors (5998277251).

40287170429 is a wasteful number, since it uses less digits than its factorization.

40287170429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94480.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 40287170429 in words is "forty billion, two hundred eighty-seven million, one hundred seventy thousand, four hundred twenty-nine".