38828100 has 72 divisors (see below), whose sum is σ = 116242560. Its totient is φ = 9994880.

The previous prime is 38828087. The next prime is 38828131. The reversal of 38828100 is 182883.

It is a super-2 number, since 2×38828100² = 3015242699220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 6469 + ... + 10931.

It is an arithmetic number, because the mean of its divisors is an integer number (1614480).

Almost surely, 2^38828100 is an apocalyptic number.

38828100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38828100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58121280).

38828100 is an abundant number, since it is smaller than the sum of its proper divisors (77414460).

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

38828100 is a wasteful number, since it uses less digits than its factorization.

38828100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509 (or 4502 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 38828100 is about 6231.2197842798. The cubic root of 38828100 is about 338.6221632437.

The spelling of 38828100 in words is "thirty-eight million, eight hundred twenty-eight thousand, one hundred".