44440646 has 16 divisors (see below), whose sum is σ = 69997824. Its totient is φ = 21120264.

The previous prime is 44440579. The next prime is 44440651. The reversal of 44440646 is 64604444.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4535 + ... + 10461.

It is an arithmetic number, because the mean of its divisors is an integer number (4374864).

Almost surely, 2^44440646 is an apocalyptic number.

44440646 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

44440646 is a deficient number, since it is larger than the sum of its proper divisors (25557178).

44440646 is a wasteful number, since it uses less digits than its factorization.

44440646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6115.

The product of its (nonzero) digits is 36864, while the sum is 32.

The square root of 44440646 is about 6666.3817772462. The cubic root of 44440646 is about 354.2094316495.

The spelling of 44440646 in words is "forty-four million, four hundred forty thousand, six hundred forty-six".