438021424860 has 24 divisors (see below), whose sum is σ = 1226459989776. Its totient is φ = 116805713280.

The previous prime is 438021424859. The next prime is 438021424877. The reversal of 438021424860 is 68424120834.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3650178481 + ... + 3650178600.

It is an arithmetic number, because the mean of its divisors is an integer number (51102499574).

Almost surely, 2^438021424860 is an apocalyptic number.

It is an amenable number.

438021424860 is an abundant number, since it is smaller than the sum of its proper divisors (788438564916).

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

438021424860 is a wasteful number, since it uses less digits than its factorization.

438021424860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7300357093 (or 7300357091 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The spelling of 438021424860 in words is "four hundred thirty-eight billion, twenty-one million, four hundred twenty-four thousand, eight hundred sixty".