40429394004 has 12 divisors (see below), whose sum is σ = 94335252704. Its totient is φ = 13476464664.

The previous prime is 40429394003. The next prime is 40429394063. The reversal of 40429394004 is 40049392404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40429394003) 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, 1684558072 + ... + 1684558095.

Almost surely, 2^40429394004 is an apocalyptic number.

It is an amenable number.

40429394004 is an abundant number, since it is smaller than the sum of its proper divisors (53905858700).

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

40429394004 is a wasteful number, since it uses less digits than its factorization.

40429394004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369116174 (or 3369116172 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 40429394004 in words is "forty billion, four hundred twenty-nine million, three hundred ninety-four thousand, four".