100444331 has 8 divisors (see below), whose sum is σ = 108576720. Its totient is φ = 92369952.

The previous prime is 100444297. The next prime is 100444387. The reversal of 100444331 is 133444001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100444331 - 2¹⁰ = 100443307 is a prime.

It is a super-2 number, since 2×100444331² = 20178127260075122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100444031) 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, 10865 + ... + 17858.

It is an arithmetic number, because the mean of its divisors is an integer number (13572090).

Almost surely, 2^100444331 is an apocalyptic number.

100444331 is a deficient number, since it is larger than the sum of its proper divisors (8132389).

100444331 is a wasteful number, since it uses less digits than its factorization.

100444331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29005.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 100444331 is about 10022.1919259212. The cubic root of 100444331 is about 464.8453349266.

Adding to 100444331 its reverse (133444001), we get a palindrome (233888332).

The spelling of 100444331 in words is "one hundred million, four hundred forty-four thousand, three hundred thirty-one".