38216564 has 6 divisors (see below), whose sum is σ = 66878994. Its totient is φ = 19108280.

The previous prime is 38216539. The next prime is 38216567. The reversal of 38216564 is 46561283.

It can be written as a sum of positive squares in only one way, i.e., 22944100 + 15272464 = 4790^2 + 3908^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38216567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4777067 + ... + 4777074.

It is an arithmetic number, because the mean of its divisors is an integer number (11146499).

Almost surely, 2^38216564 is an apocalyptic number.

It is an amenable number.

38216564 is a deficient number, since it is larger than the sum of its proper divisors (28662430).

38216564 is a wasteful number, since it uses less digits than its factorization.

38216564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9554145 (or 9554143 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 38216564 is about 6181.9547070486. The cubic root of 38216564 is about 336.8350003967.

The spelling of 38216564 in words is "thirty-eight million, two hundred sixteen thousand, five hundred sixty-four".