42321040029 has 16 divisors (see below), whose sum is σ = 62799479040. Its totient is φ = 28168287840.

The previous prime is 42321040007. The next prime is 42321040033. The reversal of 42321040029 is 92004012324.

42321040029 is a `hidden beast` number, since 4 + 23 + 210 + 400 + 29 = 666.

It is not a de Polignac number, because 42321040029 - 2²⁰ = 42319991453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 42321039984 and 42321040011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42321030029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1253557 + ... + 1286874.

It is an arithmetic number, because the mean of its divisors is an integer number (3924967440).

Almost surely, 2^42321040029 is an apocalyptic number.

It is an amenable number.

42321040029 is a deficient number, since it is larger than the sum of its proper divisors (20478439011).

42321040029 is a wasteful number, since it uses less digits than its factorization.

42321040029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541057 (or 2541051 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 42321040029 in words is "forty-two billion, three hundred twenty-one million, forty thousand, twenty-nine".