38397409 has 8 divisors (see below), whose sum is σ = 39378240. Its totient is φ = 37420656.

The previous prime is 38397391. The next prime is 38397413. The reversal of 38397409 is 90479383.

38397409 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 a cyclic number.

It is not a de Polignac number, because 38397409 - 2¹¹ = 38395361 is a prime.

It is a super-2 number, since 2×38397409² = 2948722035826562, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38397109) 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, 28452 + ... + 29770.

It is an arithmetic number, because the mean of its divisors is an integer number (4922280).

Almost surely, 2^38397409 is an apocalyptic number.

It is an amenable number.

38397409 is a deficient number, since it is larger than the sum of its proper divisors (980831).

38397409 is a wasteful number, since it uses less digits than its factorization.

38397409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 38397409 is about 6196.5642899917. The cubic root of 38397409 is about 337.3654779846.

The spelling of 38397409 in words is "thirty-eight million, three hundred ninety-seven thousand, four hundred nine".