38540919 has 8 divisors (see below), whose sum is σ = 51417472. Its totient is φ = 25679160.

The previous prime is 38540917. The next prime is 38540941. The reversal of 38540919 is 91904583.

38540919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 38540919 - 2¹ = 38540917 is a prime.

It is a super-2 number, since 2×38540919² = 2970804874729122, 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 (38540917) 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 7 ways as a sum of consecutive naturals, for example, 6072 + ... + 10674.

It is an arithmetic number, because the mean of its divisors is an integer number (6427184).

Almost surely, 2^38540919 is an apocalyptic number.

38540919 is a deficient number, since it is larger than the sum of its proper divisors (12876553).

38540919 is a wasteful number, since it uses less digits than its factorization.

38540919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7397.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 38540919 is about 6208.1332943164. The cubic root of 38540919 is about 337.7852556784.

The spelling of 38540919 in words is "thirty-eight million, five hundred forty thousand, nine hundred nineteen".