40173744434 has 16 divisors (see below), whose sum is σ = 61412734872. Its totient is φ = 19703019648.

The previous prime is 40173744433. The next prime is 40173744437. The reversal of 40173744434 is 43444737104.

It can be written as a sum of positive squares in 4 ways, for example, as 29567834209 + 10605910225 = 171953^2 + 102985^2 .

It is a super-2 number, since 2×40173744434² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40173744391 and 40173744400.

It is not an unprimeable number, because it can be changed into a prime (40173744431) 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, 406262 + ... + 495374.

Almost surely, 2^40173744434 is an apocalyptic number.

40173744434 is a deficient number, since it is larger than the sum of its proper divisors (21238990438).

40173744434 is a wasteful number, since it uses less digits than its factorization.

40173744434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93421.

The product of its (nonzero) digits is 451584, while the sum is 41.

The spelling of 40173744434 in words is "forty billion, one hundred seventy-three million, seven hundred forty-four thousand, four hundred thirty-four".