38781244 has 12 divisors (see below), whose sum is σ = 69522768. Its totient is φ = 18917600.

The previous prime is 38781221. The next prime is 38781247. The reversal of 38781244 is 44218783.

38781244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38781247) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 118072 + ... + 118399.

It is an arithmetic number, because the mean of its divisors is an integer number (5793564).

Almost surely, 2^38781244 is an apocalyptic number.

It is an amenable number.

38781244 is a deficient number, since it is larger than the sum of its proper divisors (30741524).

38781244 is a wasteful number, since it uses less digits than its factorization.

38781244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236516 (or 236514 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 38781244 is about 6227.4588718032. The cubic root of 38781244 is about 338.4858970973.

The spelling of 38781244 in words is "thirty-eight million, seven hundred eighty-one thousand, two hundred forty-four".