38885399 has 4 divisors (see below), whose sum is σ = 44440464. Its totient is φ = 33330336.

The previous prime is 38885321. The next prime is 38885453. The reversal of 38885399 is 99358883.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38885399 - 2¹² = 38881303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38885399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38885299) 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 3 ways as a sum of consecutive naturals, for example, 2777522 + ... + 2777535.

It is an arithmetic number, because the mean of its divisors is an integer number (11110116).

Almost surely, 2^38885399 is an apocalyptic number.

38885399 is a deficient number, since it is larger than the sum of its proper divisors (5555065).

38885399 is an equidigital number, since it uses as much as digits as its factorization.

38885399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555064.

The product of its digits is 1866240, while the sum is 53.

The square root of 38885399 is about 6235.8158247338. The cubic root of 38885399 is about 338.7886507008.

The spelling of 38885399 in words is "thirty-eight million, eight hundred eighty-five thousand, three hundred ninety-nine".