38831888898440 has 192 divisors, whose sum is σ = 97980571745280. Its totient is φ = 13837081420800.

The previous prime is 38831888898433. The next prime is 38831888898511. The reversal of 38831888898440 is 4489888813883.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61624004 + ... + 62250956.

It is an arithmetic number, because the mean of its divisors is an integer number (510315477840).

Almost surely, 2^{38831888898440} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38831888898440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48990285872640).

38831888898440 is an abundant number, since it is smaller than the sum of its proper divisors (59148682846840).

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

38831888898440 is a wasteful number, since it uses less digits than its factorization.

38831888898440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627244 (or 627229 counting only the distinct ones).

The product of its (nonzero) digits is 2717908992, while the sum is 80.

The spelling of 38831888898440 in words is "thirty-eight trillion, eight hundred thirty-one billion, eight hundred eighty-eight million, eight hundred ninety-eight thousand, four hundred forty".