100216326 has 64 divisors (see below), whose sum is σ = 245210112. Its totient is φ = 26652672.

The previous prime is 100216297. The next prime is 100216327. The reversal of 100216326 is 623612001.

It is a happy number.

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 (100216327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68535 + ... + 69981.

It is an arithmetic number, because the mean of its divisors is an integer number (3831408).

Almost surely, 2^100216326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100216326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122605056).

100216326 is an abundant number, since it is smaller than the sum of its proper divisors (144993786).

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

100216326 is a wasteful number, since it uses less digits than its factorization.

100216326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573.

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

The square root of 100216326 is about 10010.8104567013. The cubic root of 100216326 is about 464.4933410861.

Adding to 100216326 its reverse (623612001), we get a palindrome (723828327).

The spelling of 100216326 in words is "one hundred million, two hundred sixteen thousand, three hundred twenty-six".