444042646 has 16 divisors (see below), whose sum is σ = 699197184. Its totient is φ = 211092904.

The previous prime is 444042631. The next prime is 444042649. The reversal of 444042646 is 646240444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444042649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21220 + ... + 36583.

It is an arithmetic number, because the mean of its divisors is an integer number (43699824).

Almost surely, 2^444042646 is an apocalyptic number.

444042646 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

444042646 is a deficient number, since it is larger than the sum of its proper divisors (255154538).

444042646 is a wasteful number, since it uses less digits than its factorization.

444042646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57995.

The product of its (nonzero) digits is 73728, while the sum is 34.

The square root of 444042646 is about 21072.3194262046. The cubic root of 444042646 is about 762.9127868312.

The spelling of 444042646 in words is "four hundred forty-four million, forty-two thousand, six hundred forty-six".