38408217 has 16 divisors (see below), whose sum is σ = 52355520. Its totient is φ = 25039872.

The previous prime is 38408213. The next prime is 38408243. The reversal of 38408217 is 71280483.

It is not a de Polignac number, because 38408217 - 2² = 38408213 is a prime.

It is a super-2 number, since 2×38408217² = 2950382266238178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38408213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25158 + ... + 26640.

It is an arithmetic number, because the mean of its divisors is an integer number (3272220).

Almost surely, 2^38408217 is an apocalyptic number.

It is an amenable number.

38408217 is a deficient number, since it is larger than the sum of its proper divisors (13947303).

38408217 is a wasteful number, since it uses less digits than its factorization.

38408217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 38408217 is about 6197.4363248040. The cubic root of 38408217 is about 337.3971285927.

The spelling of 38408217 in words is "thirty-eight million, four hundred eight thousand, two hundred seventeen".