38342538 has 64 divisors (see below), whose sum is σ = 92561280. Its totient is φ = 11695104.

The previous prime is 38342519. The next prime is 38342539. The reversal of 38342538 is 83524383.

38342538 is a `hidden beast` number, since 3 + 83 + 42 + 538 = 666.

It is not an unprimeable number, because it can be changed into a prime (38342539) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 135345 + ... + 135627.

It is an arithmetic number, because the mean of its divisors is an integer number (1446270).

Almost surely, 2^38342538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38342538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46280640).

38342538 is an abundant number, since it is smaller than the sum of its proper divisors (54218742).

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

38342538 is a wasteful number, since it uses less digits than its factorization.

38342538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 494 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 38342538 is about 6192.1351729432. The cubic root of 38342538 is about 337.2046997230.

The spelling of 38342538 in words is "thirty-eight million, three hundred forty-two thousand, five hundred thirty-eight".