38405638348 has 48 divisors (see below), whose sum is σ = 83811571200. Its totient is φ = 14960119680.

The previous prime is 38405638339. The next prime is 38405638387. The reversal of 38405638348 is 84383650483.

It is a junction number, because it is equal to n+sod(n) for n = 38405638295 and 38405638304.

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, 1948768 + ... + 1968376.

It is an arithmetic number, because the mean of its divisors is an integer number (1746074400).

Almost surely, 2^38405638348 is an apocalyptic number.

It is an amenable number.

38405638348 is an abundant number, since it is smaller than the sum of its proper divisors (45405932852).

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

38405638348 is a wasteful number, since it uses less digits than its factorization.

38405638348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25990 (or 25988 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 52.

The spelling of 38405638348 in words is "thirty-eight billion, four hundred five million, six hundred thirty-eight thousand, three hundred forty-eight".