40163675438238 has 64 divisors (see below), whose sum is σ = 90120995960832. Its totient is φ = 11825714033280.

The previous prime is 40163675438189. The next prime is 40163675438239. The reversal of 40163675438238 is 83283457636104.

It is a happy number.

It is a super-2 number, since 2×40163675438238² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40163675438239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9429006 + ... + 13008977.

It is an arithmetic number, because the mean of its divisors is an integer number (1408140561888).

Almost surely, 2^{40163675438238} is an apocalyptic number.

40163675438238 is an abundant number, since it is smaller than the sum of its proper divisors (49957320522594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40163675438238 is a wasteful number, since it uses less digits than its factorization.

40163675438238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22438769.

The product of its (nonzero) digits is 69672960, while the sum is 60.

The spelling of 40163675438238 in words is "forty trillion, one hundred sixty-three billion, six hundred seventy-five million, four hundred thirty-eight thousand, two hundred thirty-eight".