38075421 has 4 divisors (see below), whose sum is σ = 50767232. Its totient is φ = 25383612.

The previous prime is 38075417. The next prime is 38075423. The reversal of 38075421 is 12457083.

38075421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 38075421 - 2² = 38075417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38075423) 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 3 ways as a sum of consecutive naturals, for example, 6345901 + ... + 6345906.

It is an arithmetic number, because the mean of its divisors is an integer number (12691808).

Almost surely, 2^38075421 is an apocalyptic number.

It is an amenable number.

38075421 is a deficient number, since it is larger than the sum of its proper divisors (12691811).

38075421 is a wasteful number, since it uses less digits than its factorization.

38075421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12691810.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 38075421 is about 6170.5284214563. The cubic root of 38075421 is about 336.4198178530.

The spelling of 38075421 in words is "thirty-eight million, seventy-five thousand, four hundred twenty-one".