38838140 has 24 divisors (see below), whose sum is σ = 88975152. Its totient is φ = 14122880.

The previous prime is 38838103. The next prime is 38838169. The reversal of 38838140 is 4183883.

It is a super-2 number, since 2×38838140² = 3016802237319200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38838140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88049 + ... + 88488.

It is an arithmetic number, because the mean of its divisors is an integer number (3707298).

Almost surely, 2^38838140 is an apocalyptic number.

It is an amenable number.

38838140 is an abundant number, since it is smaller than the sum of its proper divisors (50137012).

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

38838140 is a wasteful number, since it uses less digits than its factorization.

38838140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176557 (or 176555 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 38838140 is about 6232.0253529651. The cubic root of 38838140 is about 338.6513472070.

The spelling of 38838140 in words is "thirty-eight million, eight hundred thirty-eight thousand, one hundred forty".