100442322 has 64 divisors (see below), whose sum is σ = 236544000. Its totient is φ = 31504464.

The previous prime is 100442299. The next prime is 100442327. The reversal of 100442322 is 223244001.

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

It is a junction number, because it is equal to n+sod(n) for n = 100442295 and 100442304.

It is not an unprimeable number, because it can be changed into a prime (100442327) 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, 228579 + ... + 229017.

It is an arithmetic number, because the mean of its divisors is an integer number (3696000).

Almost surely, 2^100442322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100442322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118272000).

100442322 is an abundant number, since it is smaller than the sum of its proper divisors (136101678).

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

100442322 is a wasteful number, since it uses less digits than its factorization.

100442322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 100442322 is about 10022.0916978443. The cubic root of 100442322 is about 464.8422357621.

Adding to 100442322 its reverse (223244001), we get a palindrome (323686323).

The spelling of 100442322 in words is "one hundred million, four hundred forty-two thousand, three hundred twenty-two".