38123644 has 12 divisors (see below), whose sum is σ = 71848504. Its totient is φ = 17595504.

The previous prime is 38123641. The next prime is 38123651. The reversal of 38123644 is 44632183.

38123644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38123641) 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, 366522 + ... + 366625.

Almost surely, 2^38123644 is an apocalyptic number.

It is an amenable number.

38123644 is a deficient number, since it is larger than the sum of its proper divisors (33724860).

38123644 is a wasteful number, since it uses less digits than its factorization.

38123644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733164 (or 733162 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 38123644 is about 6174.4347109675. The cubic root of 38123644 is about 336.5617845804.

It can be divided in two parts, 381 and 23644, that added together give a square (24025 = 155²).

The spelling of 38123644 in words is "thirty-eight million, one hundred twenty-three thousand, six hundred forty-four".