15872016 has 80 divisors (see below), whose sum is σ = 44354304. Its totient is φ = 4872192.

The previous prime is 15871997. The next prime is 15872023. The reversal of 15872016 is 61027851.

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, 43065 + ... + 43431.

Almost surely, 2^15872016 is an apocalyptic number.

15872016 is a gapful number since it is divisible by the number (16) 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 15872016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22177152).

15872016 is an abundant number, since it is smaller than the sum of its proper divisors (28482288).

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

15872016 is a wasteful number, since it uses less digits than its factorization.

15872016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 15872016 is about 3983.9698794042. The cubic root of 15872016 is about 251.3105366370.

Adding to 15872016 its reverse (61027851), we get a palindrome (76899867).

The spelling of 15872016 in words is "fifteen million, eight hundred seventy-two thousand, sixteen".