40134025434 has 16 divisors (see below), whose sum is σ = 81169940160. Its totient is φ = 13227693600.

The previous prime is 40134025433. The next prime is 40134025469. The reversal of 40134025434 is 43452043104.

It is a super-2 number, since 2×40134025434² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40134025433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37578142 + ... + 37579209.

It is an arithmetic number, because the mean of its divisors is an integer number (5073121260).

Almost surely, 2^40134025434 is an apocalyptic number.

40134025434 is an abundant number, since it is smaller than the sum of its proper divisors (41035914726).

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

40134025434 is a wasteful number, since it uses less digits than its factorization.

40134025434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75157445.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 40134025434 its reverse (43452043104), we get a palindrome (83586068538).

The spelling of 40134025434 in words is "forty billion, one hundred thirty-four million, twenty-five thousand, four hundred thirty-four".