38717028 has 120 divisors (see below), whose sum is σ = 118661312. Its totient is φ = 10777536.

The previous prime is 38717011. The next prime is 38717051. The reversal of 38717028 is 82071783.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 38716983 and 38717001.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 97326 + ... + 97722.

Almost surely, 2^38717028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38717028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59330656).

38717028 is an abundant number, since it is smaller than the sum of its proper divisors (79944284).

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

38717028 is a wasteful number, since it uses less digits than its factorization.

38717028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 38717028 is about 6222.3008606142. The cubic root of 38717028 is about 338.2989663675.

The spelling of 38717028 in words is "thirty-eight million, seven hundred seventeen thousand, twenty-eight".