38738740 has 24 divisors (see below), whose sum is σ = 81510912. Its totient is φ = 15465120.

The previous prime is 38738737. The next prime is 38738753. The reversal of 38738740 is 4783783.

38738740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 38738693 and 38738702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10545 + ... + 13735.

It is an arithmetic number, because the mean of its divisors is an integer number (3396288).

Almost surely, 2^38738740 is an apocalyptic number.

It is an amenable number.

38738740 is an abundant number, since it is smaller than the sum of its proper divisors (42772172).

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

38738740 is a wasteful number, since it uses less digits than its factorization.

38738740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807 (or 3805 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 38738740 is about 6224.0453083184. The cubic root of 38738740 is about 338.3621924202.

The spelling of 38738740 in words is "thirty-eight million, seven hundred thirty-eight thousand, seven hundred forty".