38728468 has 12 divisors (see below), whose sum is σ = 68028660. Its totient is φ = 19291712.

The previous prime is 38728457. The next prime is 38728493. The reversal of 38728468 is 86482783.

38728468 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 2 ways, for example, as 17825284 + 20903184 = 4222^2 + 4572^2 .

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 3 ways as a sum of consecutive naturals, for example, 16921 + ... + 19072.

It is an arithmetic number, because the mean of its divisors is an integer number (5669055).

Almost surely, 2^38728468 is an apocalyptic number.

It is an amenable number.

38728468 is a deficient number, since it is larger than the sum of its proper divisors (29300192).

38728468 is a wasteful number, since it uses less digits than its factorization.

38728468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36266 (or 36264 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 38728468 is about 6223.2200668143. The cubic root of 38728468 is about 338.3322829662.

The spelling of 38728468 in words is "thirty-eight million, seven hundred twenty-eight thousand, four hundred sixty-eight".