44521812 has 30 divisors (see below), whose sum is σ = 116389658. Its totient is φ = 14840496.

The previous prime is 44521801. The next prime is 44521879. The reversal of 44521812 is 21812544.

44521812 is a `hidden beast` number, since 445 + 218 + 1 + 2 = 666.

44521812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 37896336 + 6625476 = 6156^2 + 2574^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 68383 + ... + 69030.

Almost surely, 2^44521812 is an apocalyptic number.

It is an amenable number.

44521812 is an abundant number, since it is smaller than the sum of its proper divisors (71867846).

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

44521812 is a wasteful number, since it uses less digits than its factorization.

44521812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137429 (or 137418 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 44521812 is about 6672.4667102954. The cubic root of 44521812 is about 354.4249421509.

The spelling of 44521812 in words is "forty-four million, five hundred twenty-one thousand, eight hundred twelve".