38506919 has 12 divisors (see below), whose sum is σ = 42616392. Its totient is φ = 34766160.

The previous prime is 38506903. The next prime is 38506927. The reversal of 38506919 is 91960583.

38506919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38506919 - 2⁴ = 38506903 is a prime.

It is a super-2 number, since 2×38506919² = 2965565621745122, 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 (38506969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17984 + ... + 20010.

It is an arithmetic number, because the mean of its divisors is an integer number (3551366).

Almost surely, 2^38506919 is an apocalyptic number.

38506919 is a deficient number, since it is larger than the sum of its proper divisors (4109473).

38506919 is a wasteful number, since it uses less digits than its factorization.

38506919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206 (or 2195 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 38506919 is about 6205.3943468566. The cubic root of 38506919 is about 337.6858974047.

The spelling of 38506919 in words is "thirty-eight million, five hundred six thousand, nine hundred nineteen".