3861448038 has 80 divisors (see below), whose sum is σ = 10090528800. Its totient is φ = 1103254992.

The previous prime is 3861448013. The next prime is 3861448099. The reversal of 3861448038 is 8308441683.

It is a junction number, because it is equal to n+sod(n) for n = 3861447984 and 3861448002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20820 + ... + 90312.

It is an arithmetic number, because the mean of its divisors is an integer number (126131610).

Almost surely, 2^3861448038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3861448038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5045264400).

3861448038 is an abundant number, since it is smaller than the sum of its proper divisors (6229080762).

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

3861448038 is an equidigital number, since it uses as much as digits as its factorization.

3861448038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69528 (or 69505 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 3861448038 is about 62140.5506734532. The cubic root of 3861448038 is about 1568.8571392507.

The spelling of 3861448038 in words is "three billion, eight hundred sixty-one million, four hundred forty-eight thousand, thirty-eight".