8440003444 has 24 divisors (see below), whose sum is σ = 15074035200. Its totient is φ = 4133404704.

The previous prime is 8440003441. The next prime is 8440003457. The reversal of 8440003444 is 4443000448.

It is a super-2 number, since 2×8440003444² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8440003441) 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, 93757 + ... + 160219.

It is an arithmetic number, because the mean of its divisors is an integer number (628084800).

Almost surely, 2^8440003444 is an apocalyptic number.

It is an amenable number.

8440003444 is a deficient number, since it is larger than the sum of its proper divisors (6634031756).

8440003444 is a wasteful number, since it uses less digits than its factorization.

8440003444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67119 (or 67117 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

The square root of 8440003444 is about 91869.4913668297. The cubic root of 8440003444 is about 2036.0145374990.

The spelling of 8440003444 in words is "eight billion, four hundred forty million, three thousand, four hundred forty-four".