44688644 has 48 divisors (see below), whose sum is σ = 105012096. Its totient is φ = 16070400.

The previous prime is 44688619. The next prime is 44688671.

44688644 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 44688595 and 44688604.

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 15 ways as a sum of consecutive naturals, for example, 1577 + ... + 9584.

It is an arithmetic number, because the mean of its divisors is an integer number (2187752).

Almost surely, 2^44688644 is an apocalyptic number.

44688644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

44688644 is an abundant number, since it is smaller than the sum of its proper divisors (60323452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44688644 is a wasteful number, since it uses less digits than its factorization.

44688644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11196 (or 11194 counting only the distinct ones).

The product of its digits is 589824, while the sum is 44.

The square root of 44688644 is about 6684.9565443614. The cubic root of 44688644 is about 354.8670903634.

The spelling of 44688644 in words is "forty-four million, six hundred eighty-eight thousand, six hundred forty-four".