38347421 has 8 divisors (see below), whose sum is σ = 43939200. Its totient is φ = 32784048.

The previous prime is 38347391. The next prime is 38347447. The reversal of 38347421 is 12474383.

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

It is a cyclic number.

It is not a de Polignac number, because 38347421 - 2¹⁰ = 38346397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38347481) 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 7 ways as a sum of consecutive naturals, for example, 4121 + ... + 9678.

It is an arithmetic number, because the mean of its divisors is an integer number (5492400).

Almost surely, 2^38347421 is an apocalyptic number.

It is an amenable number.

38347421 is a deficient number, since it is larger than the sum of its proper divisors (5591779).

38347421 is a wasteful number, since it uses less digits than its factorization.

38347421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14203.

The product of its digits is 16128, while the sum is 32.

The square root of 38347421 is about 6192.5294508787. The cubic root of 38347421 is about 337.2190136829.

The spelling of 38347421 in words is "thirty-eight million, three hundred forty-seven thousand, four hundred twenty-one".