38051421 has 4 divisors (see below), whose sum is σ = 50735232. Its totient is φ = 25367612.

The previous prime is 38051417. The next prime is 38051437. The reversal of 38051421 is 12415083.

38051421 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 a cyclic number.

It is not a de Polignac number, because 38051421 - 2² = 38051417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38051391 and 38051400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38051411) 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, 6341901 + ... + 6341906.

It is an arithmetic number, because the mean of its divisors is an integer number (12683808).

Almost surely, 2^38051421 is an apocalyptic number.

It is an amenable number.

38051421 is a deficient number, since it is larger than the sum of its proper divisors (12683811).

38051421 is a wasteful number, since it uses less digits than its factorization.

38051421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12683810.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 38051421 is about 6168.5833868077. The cubic root of 38051421 is about 336.3491180643.

The spelling of 38051421 in words is "thirty-eight million, fifty-one thousand, four hundred twenty-one".