38228865 has 8 divisors (see below), whose sum is σ = 61166208. Its totient is φ = 20388720.

The previous prime is 38228863. The next prime is 38228867. The reversal of 38228865 is 56882283.

It is an interprime number because it is at equal distance from previous prime (38228863) and next prime (38228867).

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

It is not a de Polignac number, because 38228865 - 2¹ = 38228863 is a prime.

It is a super-2 number, since 2×38228865² = 2922892238376450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (38228863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274281 + ... + 1274310.

It is an arithmetic number, because the mean of its divisors is an integer number (7645776).

Almost surely, 2^38228865 is an apocalyptic number.

It is an amenable number.

38228865 is a deficient number, since it is larger than the sum of its proper divisors (22937343).

38228865 is a wasteful number, since it uses less digits than its factorization.

38228865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548599.

The product of its digits is 184320, while the sum is 42.

The square root of 38228865 is about 6182.9495388528. The cubic root of 38228865 is about 336.8711362361.

It can be divided in two parts, 38228 and 865, that added together give a palindrome (39093).

The spelling of 38228865 in words is "thirty-eight million, two hundred twenty-eight thousand, eight hundred sixty-five".