38747472 has 40 divisors (see below), whose sum is σ = 102430944. Its totient is φ = 12614784.

The previous prime is 38747461. The next prime is 38747491. The reversal of 38747472 is 27474783.

38747472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

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, 7323 + ... + 11450.

Almost surely, 2^38747472 is an apocalyptic number.

It is an amenable number.

38747472 is an abundant number, since it is smaller than the sum of its proper divisors (63683472).

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

38747472 is a wasteful number, since it uses less digits than its factorization.

38747472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18827 (or 18821 counting only the distinct ones).

The product of its digits is 263424, while the sum is 42.

The square root of 38747472 is about 6224.7467418362. The cubic root of 38747472 is about 338.3876136282.

The spelling of 38747472 in words is "thirty-eight million, seven hundred forty-seven thousand, four hundred seventy-two".