44721612 has 96 divisors (see below), whose sum is σ = 127431360. Its totient is φ = 13478400.

The previous prime is 44721583. The next prime is 44721617. The reversal of 44721612 is 21612744.

44721612 is a `hidden beast` number, since 4 + 47 + 2 + 1 + 612 = 666.

44721612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

Its product of digits (2688) is a multiple of the sum of its prime divisors (672).

It is not an unprimeable number, because it can be changed into a prime (44721617) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 74112 + ... + 74712.

It is an arithmetic number, because the mean of its divisors is an integer number (1327410).

Almost surely, 2^44721612 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 44721612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63715680).

44721612 is an abundant number, since it is smaller than the sum of its proper divisors (82709748).

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

44721612 is a wasteful number, since it uses less digits than its factorization.

44721612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 672 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 44721612 is about 6687.4219247779. The cubic root of 44721612 is about 354.9543338733.

It can be divided in two parts, 4472 and 1612, that added together give a square (6084 = 78²).

The spelling of 44721612 in words is "forty-four million, seven hundred twenty-one thousand, six hundred twelve".