38216313 has 8 divisors (see below), whose sum is σ = 56616800. Its totient is φ = 25477524.

The previous prime is 38216309. The next prime is 38216369. The reversal of 38216313 is 31361283.

It is a happy number.

38216313 is a `hidden beast` number, since 3 + 8 + 21 + 631 + 3 = 666.

It is not a de Polignac number, because 38216313 - 2² = 38216309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1415419 = 38216313 / (3 + 8 + 2 + 1 + 6 + 3 + 1 + 3).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38216383) 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, 707683 + ... + 707736.

It is an arithmetic number, because the mean of its divisors is an integer number (7077100).

Almost surely, 2^38216313 is an apocalyptic number.

It is an amenable number.

38216313 is a deficient number, since it is larger than the sum of its proper divisors (18400487).

38216313 is a wasteful number, since it uses less digits than its factorization.

38216313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415428 (or 1415422 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 38216313 is about 6181.9344059930. The cubic root of 38216313 is about 336.8342629697.

Adding to 38216313 its reverse (31361283), we get a palindrome (69577596).

The spelling of 38216313 in words is "thirty-eight million, two hundred sixteen thousand, three hundred thirteen".