38936628 has 54 divisors (see below), whose sum is σ = 100257794. Its totient is φ = 12740832.

The previous prime is 38936587. The next prime is 38936657. The reversal of 38936628 is 82663983.

It can be written as a sum of positive squares in only one way, i.e., 30008484 + 8928144 = 5478^2 + 2988^2 .

It is a super-2 number, since 2×38936628² = 3032122000020768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 247926 + ... + 248082.

Almost surely, 2^38936628 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 38936628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50128897).

38936628 is an abundant number, since it is smaller than the sum of its proper divisors (61321166).

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

38936628 is a wasteful number, since it uses less digits than its factorization.

38936628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 245 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 38936628 is about 6239.9221148986. The cubic root of 38936628 is about 338.9373627974.

The spelling of 38936628 in words is "thirty-eight million, nine hundred thirty-six thousand, six hundred twenty-eight".