38538828 has 72 divisors (see below), whose sum is σ = 104366080. Its totient is φ = 12422160.

The previous prime is 38538769. The next prime is 38538833. The reversal of 38538828 is 82883583.

38538828 is a `hidden beast` number, since 38 + 538 + 82 + 8 = 666.

It is a super-2 number, since 2×38538828² = 2970482527227168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29493 + ... + 30771.

Almost surely, 2^38538828 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 38538828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52183040).

38538828 is an abundant number, since it is smaller than the sum of its proper divisors (65827252).

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

38538828 is a wasteful number, since it uses less digits than its factorization.

38538828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1315 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 38538828 is about 6207.9648839213. The cubic root of 38538828 is about 337.7791468313.

The spelling of 38538828 in words is "thirty-eight million, five hundred thirty-eight thousand, eight hundred twenty-eight".