38830849840 has 20 divisors (see below), whose sum is σ = 90281726064. Its totient is φ = 15532339904.

The previous prime is 38830849819. The next prime is 38830849847. The reversal of 38830849840 is 4894803883.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (38830849847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242692732 + ... + 242692891.

Almost surely, 2^38830849840 is an apocalyptic number.

It is an amenable number.

38830849840 is an abundant number, since it is smaller than the sum of its proper divisors (51450876224).

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

38830849840 is a wasteful number, since it uses less digits than its factorization.

38830849840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485385636 (or 485385630 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 55.

The spelling of 38830849840 in words is "thirty-eight billion, eight hundred thirty million, eight hundred forty-nine thousand, eight hundred forty".