38918028 has 12 divisors (see below), whose sum is σ = 90808760. Its totient is φ = 12972672.

The previous prime is 38918017. The next prime is 38918041. The reversal of 38918028 is 82081983.

38918028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×38918028² = 3029225806817568, which contains 22 as substring.

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, 1621573 + ... + 1621596.

Almost surely, 2^38918028 is an apocalyptic number.

It is an amenable number.

38918028 is an abundant number, since it is smaller than the sum of its proper divisors (51890732).

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

38918028 is a wasteful number, since it uses less digits than its factorization.

38918028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243176 (or 3243174 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 38918028 is about 6238.4315336469. The cubic root of 38918028 is about 338.8833841542.

The spelling of 38918028 in words is "thirty-eight million, nine hundred eighteen thousand, twenty-eight".