38875309 has 8 divisors (see below), whose sum is σ = 42539328. Its totient is φ = 35232960.

The previous prime is 38875307. The next prime is 38875321. The reversal of 38875309 is 90357883.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38875309 - 2¹ = 38875307 is a prime.

It is a super-2 number, since 2×38875309² = 3022579299690962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38875303) 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, 1537 + ... + 8950.

It is an arithmetic number, because the mean of its divisors is an integer number (5317416).

Almost surely, 2^38875309 is an apocalyptic number.

It is an amenable number.

38875309 is a deficient number, since it is larger than the sum of its proper divisors (3664019).

38875309 is a wasteful number, since it uses less digits than its factorization.

38875309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10835.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 38875309 is about 6235.0067361632. The cubic root of 38875309 is about 338.7593451578.

The spelling of 38875309 in words is "thirty-eight million, eight hundred seventy-five thousand, three hundred nine".