38006343438 has 64 divisors (see below), whose sum is σ = 89135155200. Its totient is φ = 10798855200.

The previous prime is 38006343421. The next prime is 38006343457. The reversal of 38006343438 is 83434360083.

38006343438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 38006343438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321483 + ... + 423513.

It is an arithmetic number, because the mean of its divisors is an integer number (1392736800).

Almost surely, 2^38006343438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38006343438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44567577600).

38006343438 is an abundant number, since it is smaller than the sum of its proper divisors (51128811762).

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

38006343438 is a wasteful number, since it uses less digits than its factorization.

38006343438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102238 (or 102224 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 38006343438 in words is "thirty-eight billion, six million, three hundred forty-three thousand, four hundred thirty-eight".