100444321 has 8 divisors (see below), whose sum is σ = 101634624. Its totient is φ = 99261360.

The previous prime is 100444297. The next prime is 100444387. The reversal of 100444321 is 123444001.

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 100444321 - 2¹³ = 100436129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100444921) 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, 28566 + ... + 31888.

It is an arithmetic number, because the mean of its divisors is an integer number (12704328).

Almost surely, 2^100444321 is an apocalyptic number.

It is an amenable number.

100444321 is a deficient number, since it is larger than the sum of its proper divisors (1190303).

100444321 is a wasteful number, since it uses less digits than its factorization.

100444321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 100444321 is about 10022.1914270283. The cubic root of 100444321 is about 464.8453195003.

Adding to 100444321 its reverse (123444001), we get a palindrome (223888322).

It can be divided in two parts, 10044 and 4321, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 100444321 in words is "one hundred million, four hundred forty-four thousand, three hundred twenty-one".