32103216 has 120 divisors (see below), whose sum is σ = 97493760. Its totient is φ = 10207296.

The previous prime is 32103173. The next prime is 32103221. The reversal of 32103216 is 61230123.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89245 + ... + 89603.

It is an arithmetic number, because the mean of its divisors is an integer number (812448).

Almost surely, 2^32103216 is an apocalyptic number.

32103216 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 32103216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48746880).

32103216 is an abundant number, since it is smaller than the sum of its proper divisors (65390544).

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

32103216 is a wasteful number, since it uses less digits than its factorization.

32103216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 32103216 is about 5665.9699963907. The cubic root of 32103216 is about 317.8211881876.

Adding to 32103216 its reverse (61230123), we get a palindrome (93333339).

The spelling of 32103216 in words is "thirty-two million, one hundred three thousand, two hundred sixteen".