38383820040 has 32 divisors (see below), whose sum is σ = 115151460480. Its totient is φ = 10235685312.

The previous prime is 38383819963. The next prime is 38383820047. The reversal of 38383820040 is 4002838383.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38383820047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159932464 + ... + 159932703.

It is an arithmetic number, because the mean of its divisors is an integer number (3598483140).

Almost surely, 2^38383820040 is an apocalyptic number.

38383820040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38383820040 is an abundant number, since it is smaller than the sum of its proper divisors (76767640440).

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

38383820040 is a wasteful number, since it uses less digits than its factorization.

38383820040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319865181 (or 319865177 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 38383820040 in words is "thirty-eight billion, three hundred eighty-three million, eight hundred twenty thousand, forty".