38738865 has 16 divisors (see below), whose sum is σ = 67617216. Its totient is φ = 18782400.

The previous prime is 38738851. The next prime is 38738873. The reversal of 38738865 is 56883783.

It is a happy number.

It is not a de Polignac number, because 38738865 - 2⁷ = 38738737 is a prime.

It is a super-2 number, since 2×38738865² = 3001399322976450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117226 + ... + 117555.

It is an arithmetic number, because the mean of its divisors is an integer number (4226076).

Almost surely, 2^38738865 is an apocalyptic number.

It is an amenable number.

38738865 is a deficient number, since it is larger than the sum of its proper divisors (28878351).

38738865 is a wasteful number, since it uses less digits than its factorization.

38738865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234800.

The product of its digits is 967680, while the sum is 48.

The square root of 38738865 is about 6224.0553500110. The cubic root of 38738865 is about 338.3625563559.

The spelling of 38738865 in words is "thirty-eight million, seven hundred thirty-eight thousand, eight hundred sixty-five".