4000000444 has 12 divisors (see below), whose sum is σ = 7636364568. Its totient is φ = 1818182000.

The previous prime is 4000000427. The next prime is 4000000451. The reversal of 4000000444 is 4440000004.

4000000444 is a modest number, since divided by 444 gives 4 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45454507 + ... + 45454594.

It is an arithmetic number, because the mean of its divisors is an integer number (636363714).

Almost surely, 2^4000000444 is an apocalyptic number.

4000000444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4000000444 is a deficient number, since it is larger than the sum of its proper divisors (3636364124).

4000000444 is a wasteful number, since it uses less digits than its factorization.

4000000444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90909116 (or 90909114 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4000000444 is about 63245.5567134957. The cubic root of 4000000444 is about 1587.4011107020.

Adding to 4000000444 its reverse (4440000004), we get a palindrome (8440000448).

The spelling of 4000000444 in words is "four billion, four hundred forty-four", and thus it is an aban number.