40420534429 has 8 divisors (see below), whose sum is σ = 44927112672. Its totient is φ = 36052620240.

The previous prime is 40420534409. The next prime is 40420534433. The reversal of 40420534429 is 92443502404.

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

It is a cyclic number.

It is not a de Polignac number, because 40420534429 - 2¹¹ = 40420532381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40420534409) 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, 34665399 + ... + 34666564.

It is an arithmetic number, because the mean of its divisors is an integer number (5615889084).

Almost surely, 2^40420534429 is an apocalyptic number.

It is an amenable number.

40420534429 is a deficient number, since it is larger than the sum of its proper divisors (4506578243).

40420534429 is a wasteful number, since it uses less digits than its factorization.

40420534429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69332027.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 40420534429 in words is "forty billion, four hundred twenty million, five hundred thirty-four thousand, four hundred twenty-nine".