44721473 has 4 divisors (see below), whose sum is σ = 44764608. Its totient is φ = 44678340.

The previous prime is 44721463. The next prime is 44721503. The reversal of 44721473 is 37412744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44721473 - 2¹⁰ = 44720449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44721433) 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 3 ways as a sum of consecutive naturals, for example, 19973 + ... + 22098.

It is an arithmetic number, because the mean of its divisors is an integer number (11191152).

Almost surely, 2^44721473 is an apocalyptic number.

It is an amenable number.

44721473 is a deficient number, since it is larger than the sum of its proper divisors (43135).

44721473 is a wasteful number, since it uses less digits than its factorization.

44721473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43134.

The product of its digits is 18816, while the sum is 32.

The square root of 44721473 is about 6687.4115321251. The cubic root of 44721473 is about 354.9539661264.

The spelling of 44721473 in words is "forty-four million, seven hundred twenty-one thousand, four hundred seventy-three".