38890016 has 96 divisors (see below), whose sum is σ = 90683712. Its totient is φ = 16220160.

The previous prime is 38890013. The next prime is 38890021. The reversal of 38890016 is 61009883.

It is not an unprimeable number, because it can be changed into a prime (38890013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400880 + ... + 400976.

It is an arithmetic number, because the mean of its divisors is an integer number (944622).

Almost surely, 2^38890016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38890016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45341856).

38890016 is an abundant number, since it is smaller than the sum of its proper divisors (51793696).

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

38890016 is a wasteful number, since it uses less digits than its factorization.

38890016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 38890016 is about 6236.1860139030. The cubic root of 38890016 is about 338.8020586923.

Adding to 38890016 its reverse (61009883), we get a palindrome (99899899).

The spelling of 38890016 in words is "thirty-eight million, eight hundred ninety thousand, sixteen".