38938340 has 36 divisors (see below), whose sum is σ = 95123196. Its totient is φ = 13349952.

The previous prime is 38938337. The next prime is 38938351. The reversal of 38938340 is 4383983.

It can be written as a sum of positive squares in 2 ways, for example, as 27269284 + 11669056 = 5222^2 + 3416^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38938294 and 38938303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18887 + ... + 20846.

It is an arithmetic number, because the mean of its divisors is an integer number (2642311).

Almost surely, 2^38938340 is an apocalyptic number.

It is an amenable number.

38938340 is an abundant number, since it is smaller than the sum of its proper divisors (56184856).

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

38938340 is a wasteful number, since it uses less digits than its factorization.

38938340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39756 (or 39747 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 38938340 is about 6240.0592945901. The cubic root of 38938340 is about 338.9423302903.

The spelling of 38938340 in words is "thirty-eight million, nine hundred thirty-eight thousand, three hundred forty".