38828180 has 12 divisors (see below), whose sum is σ = 81539220. Its totient is φ = 15531264.

The previous prime is 38828177. The next prime is 38828197. The reversal of 38828180 is 8182883.

It can be written as a sum of positive squares in 2 ways, for example, as 23367556 + 15460624 = 4834^2 + 3932^2 .

It is a super-2 number, since 2×38828180² = 3015255124224800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970685 + ... + 970724.

It is an arithmetic number, because the mean of its divisors is an integer number (6794935).

Almost surely, 2^38828180 is an apocalyptic number.

It is an amenable number.

38828180 is an abundant number, since it is smaller than the sum of its proper divisors (42711040).

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

38828180 is a wasteful number, since it uses less digits than its factorization.

38828180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941418 (or 1941416 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 38828180 is about 6231.2262035654. The cubic root of 38828180 is about 338.6223958051.

The spelling of 38828180 in words is "thirty-eight million, eight hundred twenty-eight thousand, one hundred eighty".