38866144 has 12 divisors (see below), whose sum is σ = 76517784. Its totient is φ = 19433056.

The previous prime is 38866141. The next prime is 38866171. The reversal of 38866144 is 44166883.

It is a junction number, because it is equal to n+sod(n) for n = 38866097 and 38866106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38866141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607252 + ... + 607315.

It is an arithmetic number, because the mean of its divisors is an integer number (6376482).

Almost surely, 2^38866144 is an apocalyptic number.

It is an amenable number.

38866144 is a deficient number, since it is larger than the sum of its proper divisors (37651640).

38866144 is a wasteful number, since it uses less digits than its factorization.

38866144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214577 (or 1214569 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 38866144 is about 6234.2717297211. The cubic root of 38866144 is about 338.7327218032.

The spelling of 38866144 in words is "thirty-eight million, eight hundred sixty-six thousand, one hundred forty-four".