16216032 has 96 divisors (see below), whose sum is σ = 49593600. Its totient is φ = 4543488.

The previous prime is 16216019. The next prime is 16216037. The reversal of 16216032 is 23061261.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16216037) 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, 39444 + ... + 39852.

It is an arithmetic number, because the mean of its divisors is an integer number (516600).

Almost surely, 2^16216032 is an apocalyptic number.

16216032 is a gapful number since it is divisible by the number (12) 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 16216032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24796800).

16216032 is an abundant number, since it is smaller than the sum of its proper divisors (33377568).

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

16216032 is a wasteful number, since it uses less digits than its factorization.

16216032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 16216032 is about 4026.9134582208. The cubic root of 16216032 is about 253.1132406669.

Adding to 16216032 its reverse (23061261), we get a palindrome (39277293).

The spelling of 16216032 in words is "sixteen million, two hundred sixteen thousand, thirty-two".