38540473 has 4 divisors (see below), whose sum is σ = 38666320. Its totient is φ = 38414628.

The previous prime is 38540461. The next prime is 38540497. The reversal of 38540473 is 37404583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38540473 - 2²⁵ = 4986041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38540413) 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, 62463 + ... + 63076.

It is an arithmetic number, because the mean of its divisors is an integer number (9666580).

Almost surely, 2^38540473 is an apocalyptic number.

It is an amenable number.

38540473 is a deficient number, since it is larger than the sum of its proper divisors (125847).

38540473 is a wasteful number, since it uses less digits than its factorization.

38540473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125846.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 38540473 is about 6208.0973735920. The cubic root of 38540473 is about 337.7839527099.

The spelling of 38540473 in words is "thirty-eight million, five hundred forty thousand, four hundred seventy-three".