40040451434 has 8 divisors (see below), whose sum is σ = 60064402080. Its totient is φ = 20018984076.

The previous prime is 40040451433. The next prime is 40040451481. The reversal of 40040451434 is 43415404004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40040451397 and 40040451406.

It is not an unprimeable number, because it can be changed into a prime (40040451433) 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 3 ways as a sum of consecutive naturals, for example, 579974 + ... + 645329.

It is an arithmetic number, because the mean of its divisors is an integer number (7508050260).

Almost surely, 2^40040451434 is an apocalyptic number.

40040451434 is a deficient number, since it is larger than the sum of its proper divisors (20023950646).

40040451434 is a wasteful number, since it uses less digits than its factorization.

40040451434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241644.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 40040451434 its reverse (43415404004), we get a palindrome (83455855438).

The spelling of 40040451434 in words is "forty billion, forty million, four hundred fifty-one thousand, four hundred thirty-four".