44449664 has 96 divisors (see below), whose sum is σ = 108721800. Its totient is φ = 17998848.

The previous prime is 44449649. The next prime is 44449667. The reversal of 44449664 is 46694444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44449667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118982 + ... + 119354.

Almost surely, 2^44449664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44449664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54360900).

44449664 is an abundant number, since it is smaller than the sum of its proper divisors (64272136).

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

44449664 is a wasteful number, since it uses less digits than its factorization.

44449664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 401 counting only the distinct ones).

The product of its digits is 331776, while the sum is 41.

The square root of 44449664 is about 6667.0581218405. The cubic root of 44449664 is about 354.2333890317.

The spelling of 44449664 in words is "forty-four million, four hundred forty-nine thousand, six hundred sixty-four".