40015031672 has 32 divisors (see below), whose sum is σ = 93541633920. Its totient is φ = 15590271840.

The previous prime is 40015031671. The next prime is 40015031689. The reversal of 40015031672 is 27613051004.

It is a super-2 number, since 2×40015031672² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40015031671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32479118 + ... + 32480349.

It is an arithmetic number, because the mean of its divisors is an integer number (2923176060).

Almost surely, 2^40015031672 is an apocalyptic number.

It is an amenable number.

40015031672 is an abundant number, since it is smaller than the sum of its proper divisors (53526602248).

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

40015031672 is a wasteful number, since it uses less digits than its factorization.

40015031672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64959491 (or 64959487 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 40015031672 its reverse (27613051004), we get a palindrome (67628082676).

The spelling of 40015031672 in words is "forty billion, fifteen million, thirty-one thousand, six hundred seventy-two".