100444401 has 8 divisors (see below), whose sum is σ = 148806560. Its totient is φ = 66962916.

The previous prime is 100444397. The next prime is 100444403. The reversal of 100444401 is 104444001.

It is not a de Polignac number, because 100444401 - 2² = 100444397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100444403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1860055 + ... + 1860108.

It is an arithmetic number, because the mean of its divisors is an integer number (18600820).

Almost surely, 2^100444401 is an apocalyptic number.

It is an amenable number.

100444401 is a deficient number, since it is larger than the sum of its proper divisors (48362159).

100444401 is an equidigital number, since it uses as much as digits as its factorization.

100444401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720172 (or 3720166 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 100444401 is about 10022.1954181706. The cubic root of 100444401 is about 464.8454429107.

Adding to 100444401 its reverse (104444001), we get a palindrome (204888402).

The spelling of 100444401 in words is "one hundred million, four hundred forty-four thousand, four hundred one".