44445072 has 160 divisors (see below), whose sum is σ = 143990784. Its totient is φ = 11520000.

The previous prime is 44445067. The next prime is 44445073. The reversal of 44445072 is 27054444.

It is not an unprimeable number, because it can be changed into a prime (44445073) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 176947 + ... + 177197.

Almost surely, 2^44445072 is an apocalyptic number.

44445072 is a gapful number since it is divisible by the number (42) 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 44445072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71995392).

44445072 is an abundant number, since it is smaller than the sum of its proper divisors (99545712).

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

44445072 is a wasteful number, since it uses less digits than its factorization.

44445072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 44445072 is about 6666.7137331672. The cubic root of 44445072 is about 354.2211902462.

The spelling of 44445072 in words is "forty-four million, four hundred forty-five thousand, seventy-two".