38421345 has 8 divisors (see below), whose sum is σ = 61474176. Its totient is φ = 20491376.

The previous prime is 38421319. The next prime is 38421347. The reversal of 38421345 is 54312483.

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 38421345 - 2¹³ = 38413153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38421347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280697 + ... + 1280726.

It is an arithmetic number, because the mean of its divisors is an integer number (7684272).

Almost surely, 2^38421345 is an apocalyptic number.

It is an amenable number.

38421345 is a deficient number, since it is larger than the sum of its proper divisors (23052831).

38421345 is a wasteful number, since it uses less digits than its factorization.

38421345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561431.

The product of its digits is 11520, while the sum is 30.

The square root of 38421345 is about 6198.4953819455. The cubic root of 38421345 is about 337.4355652025.

The spelling of 38421345 in words is "thirty-eight million, four hundred twenty-one thousand, three hundred forty-five".