44444001 has 16 divisors (see below), whose sum is σ = 71708544.
Its totient is φ = 23902464.
The previous prime is 44443991. The next prime is 44444009. The reversal of 44444001 is 10044444.
Adding to 44444001 its reverse (10044444), we get a palindrome (54488445).
It is not a de Polignac number, because 44444001 - 26 = 44443937 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is not an unprimeable number, because it can be changed into a prime (44444009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61890 + ... + 62603.
It is an arithmetic number, because the mean of its divisors is an integer number (4481784).
Almost surely, 244444001 is an apocalyptic number.
It is an amenable number.
44444001 is a deficient number, since it is larger than the sum of its proper divisors (27264543).
44444001 is a wasteful number, since it uses less digits than its factorization.
44444001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124520.
The product of its (nonzero) digits is 1024, while the sum is 21.
The square root of 44444001 is about 6666.6334082504.
The cubic root of 44444001 is about 354.2183449819.
The spelling of 44444001 in words is "forty-four million, four hundred forty-four thousand, one".