43722573 has 8 divisors (see below), whose sum is σ = 58863168. Its totient is φ = 28865184.

The previous prime is 43722571. The next prime is 43722583. The reversal of 43722573 is 37522734.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43722573 - 2¹ = 43722571 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43722571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70440 + ... + 71057.

It is an arithmetic number, because the mean of its divisors is an integer number (7357896).

Almost surely, 2^43722573 is an apocalyptic number.

It is an amenable number.

43722573 is a deficient number, since it is larger than the sum of its proper divisors (15140595).

43722573 is a wasteful number, since it uses less digits than its factorization.

43722573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141603.

The product of its digits is 35280, while the sum is 33.

The square root of 43722573 is about 6612.3046663021. The cubic root of 43722573 is about 352.2912883492.

The spelling of 43722573 in words is "forty-three million, seven hundred twenty-two thousand, five hundred seventy-three".