44643648 has 112 divisors (see below), whose sum is σ = 137525760. Its totient is φ = 12516864.

The previous prime is 44643637. The next prime is 44643653. The reversal of 44643648 is 84634644.

It is a tau number, because it is divible by the number of its divisors (112).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79015 + ... + 79577.

Almost surely, 2^44643648 is an apocalyptic number.

44643648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44643648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68762880).

44643648 is an abundant number, since it is smaller than the sum of its proper divisors (92882112).

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

44643648 is a wasteful number, since it uses less digits than its factorization.

44643648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 634 counting only the distinct ones).

The product of its digits is 221184, while the sum is 39.

The square root of 44643648 is about 6681.5902298779. The cubic root of 44643648 is about 354.7479477781.

The spelling of 44643648 in words is "forty-four million, six hundred forty-three thousand, six hundred forty-eight".