40429071872 has 80 divisors (see below), whose sum is σ = 97178125440. Its totient is φ = 16414783488.

The previous prime is 40429071869. The next prime is 40429071877. The reversal of 40429071872 is 27817092404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40429071877) 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, 228758 + ... + 364949.

It is an arithmetic number, because the mean of its divisors is an integer number (1214726568).

Almost surely, 2^40429071872 is an apocalyptic number.

It is an amenable number.

40429071872 is an abundant number, since it is smaller than the sum of its proper divisors (56749053568).

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

40429071872 is an equidigital number, since it uses as much as digits as its factorization.

40429071872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593751 (or 593735 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 40429071872 in words is "forty billion, four hundred twenty-nine million, seventy-one thousand, eight hundred seventy-two".