100018446 has 64 divisors (see below), whose sum is σ = 233694720. Its totient is φ = 28200960.

The previous prime is 100018441. The next prime is 100018547. The reversal of 100018446 is 644810001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100018441) 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, 108375 + ... + 109293.

It is an arithmetic number, because the mean of its divisors is an integer number (3651480).

Almost surely, 2^100018446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100018446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116847360).

100018446 is an abundant number, since it is smaller than the sum of its proper divisors (133676274).

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

100018446 is a wasteful number, since it uses less digits than its factorization.

100018446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 100018446 is about 10000.9222574721. The cubic root of 100018446 is about 464.1874211892.

Adding to 100018446 its reverse (644810001), we get a palindrome (744828447).

The spelling of 100018446 in words is "one hundred million, eighteen thousand, four hundred forty-six".