38835640 has 32 divisors (see below), whose sum is σ = 90396000. Its totient is φ = 14998144.

The previous prime is 38835637. The next prime is 38835649. The reversal of 38835640 is 4653883.

It is a self number, because there is not a number n which added to its sum of digits gives 38835640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38835649) 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 7 ways as a sum of consecutive naturals, for example, 15580 + ... + 17899.

It is an arithmetic number, because the mean of its divisors is an integer number (2824875).

Almost surely, 2^38835640 is an apocalyptic number.

It is an amenable number.

38835640 is an abundant number, since it is smaller than the sum of its proper divisors (51560360).

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

38835640 is a wasteful number, since it uses less digits than its factorization.

38835640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33519 (or 33515 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 38835640 is about 6231.8247728896. The cubic root of 38835640 is about 338.6440807542.

The spelling of 38835640 in words is "thirty-eight million, eight hundred thirty-five thousand, six hundred forty".