38151216 has 80 divisors (see below), whose sum is σ = 111897600. Its totient is φ = 12439872.

The previous prime is 38151203. The next prime is 38151241. The reversal of 38151216 is 61215183.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 38151216.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19365 + ... + 21243.

It is an arithmetic number, because the mean of its divisors is an integer number (1398720).

Almost surely, 2^38151216 is an apocalyptic number.

38151216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38151216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55948800).

38151216 is an abundant number, since it is smaller than the sum of its proper divisors (73746384).

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

38151216 is a wasteful number, since it uses less digits than its factorization.

38151216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1931 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 38151216 is about 6176.6670624213. The cubic root of 38151216 is about 336.6429017416.

Adding to 38151216 its reverse (61215183), we get a palindrome (99366399).

The spelling of 38151216 in words is "thirty-eight million, one hundred fifty-one thousand, two hundred sixteen".