38221016 has 32 divisors (see below), whose sum is σ = 74409600. Its totient is φ = 18385920.

The previous prime is 38220991. The next prime is 38221019. The reversal of 38221016 is 61012283.

It is a junction number, because it is equal to n+sod(n) for n = 38220982 and 38221000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38221019) 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, 56456 + ... + 57128.

It is an arithmetic number, because the mean of its divisors is an integer number (2325300).

Almost surely, 2^38221016 is an apocalyptic number.

It is an amenable number.

38221016 is a deficient number, since it is larger than the sum of its proper divisors (36188584).

38221016 is a wasteful number, since it uses less digits than its factorization.

38221016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 38221016 is about 6182.3147768453. The cubic root of 38221016 is about 336.8480796398.

Adding to 38221016 its reverse (61012283), we get a palindrome (99233299).

The spelling of 38221016 in words is "thirty-eight million, two hundred twenty-one thousand, sixteen".