44443644 has 48 divisors (see below), whose sum is σ = 125491968. Its totient is φ = 11950848.

The previous prime is 44443643. The next prime is 44443669. The reversal of 44443644 is 44634444.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44443643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14134 + ... + 16989.

It is an arithmetic number, because the mean of its divisors is an integer number (2614416).

Almost surely, 2^44443644 is an apocalyptic number.

It is an amenable number.

44443644 is an abundant number, since it is smaller than the sum of its proper divisors (81048324).

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

44443644 is a wasteful number, since it uses less digits than its factorization.

44443644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31154 (or 31152 counting only the distinct ones).

The product of its digits is 73728, while the sum is 33.

The square root of 44443644 is about 6666.6066330630. The cubic root of 44443644 is about 354.2173965502.

The spelling of 44443644 in words is "forty-four million, four hundred forty-three thousand, six hundred forty-four".