38658772 has 6 divisors (see below), whose sum is σ = 67652858. Its totient is φ = 19329384.

The previous prime is 38658751. The next prime is 38658773. The reversal of 38658772 is 27785683.

38658772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 29441476 + 9217296 = 5426^2 + 3036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38658773) 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 as a sum of consecutive naturals, namely, 4832343 + ... + 4832350.

Almost surely, 2^38658772 is an apocalyptic number.

It is an amenable number.

38658772 is a deficient number, since it is larger than the sum of its proper divisors (28994086).

38658772 is a wasteful number, since it uses less digits than its factorization.

38658772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9664697 (or 9664695 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 38658772 is about 6217.6178718220. The cubic root of 38658772 is about 338.1292061141.

The spelling of 38658772 in words is "thirty-eight million, six hundred fifty-eight thousand, seven hundred seventy-two".