38331616 has 24 divisors (see below), whose sum is σ = 78747984. Its totient is φ = 18332160.

The previous prime is 38331611. The next prime is 38331661. The reversal of 38331616 is 61613383.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38331611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25305 + ... + 26776.

It is an arithmetic number, because the mean of its divisors is an integer number (3281166).

Almost surely, 2^38331616 is an apocalyptic number.

It is an amenable number.

38331616 is an abundant number, since it is smaller than the sum of its proper divisors (40416368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38331616 is a wasteful number, since it uses less digits than its factorization.

38331616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52114 (or 52106 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 38331616 is about 6191.2531849376. The cubic root of 38331616 is about 337.1726787208.

Adding to 38331616 its reverse (61613383), we get a palindrome (99944999).

The spelling of 38331616 in words is "thirty-eight million, three hundred thirty-one thousand, six hundred sixteen".