42002438406 has 32 divisors (see below), whose sum is σ = 86306381280. Its totient is φ = 13617501696.

The previous prime is 42002438393. The next prime is 42002438417. The reversal of 42002438406 is 60483420024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610480 + ... + 675788.

It is an arithmetic number, because the mean of its divisors is an integer number (2697074415).

Almost surely, 2^42002438406 is an apocalyptic number.

42002438406 is an abundant number, since it is smaller than the sum of its proper divisors (44303942874).

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

42002438406 is a wasteful number, since it uses less digits than its factorization.

42002438406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68248.

The product of its (nonzero) digits is 36864, while the sum is 33.

The spelling of 42002438406 in words is "forty-two billion, two million, four hundred thirty-eight thousand, four hundred six".