38438065 has 8 divisors (see below), whose sum is σ = 46381608. Its totient is φ = 30579840.

The previous prime is 38438063. The next prime is 38438069. The reversal of 38438065 is 56083483.

It can be written as a sum of positive squares in 4 ways, for example, as 1520289 + 36917776 = 1233^2 + 6076^2 .

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

It is not a de Polignac number, because 38438065 - 2¹ = 38438063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38438063) 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, 20332 + ... + 22141.

It is an arithmetic number, because the mean of its divisors is an integer number (5797701).

Almost surely, 2^38438065 is an apocalyptic number.

It is an amenable number.

38438065 is a deficient number, since it is larger than the sum of its proper divisors (7943543).

38438065 is a wasteful number, since it uses less digits than its factorization.

38438065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42659.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 38438065 is about 6199.8439496491. The cubic root of 38438065 is about 337.4845059188.

The spelling of 38438065 in words is "thirty-eight million, four hundred thirty-eight thousand, sixty-five".