444572461 has 4 divisors (see below), whose sum is σ = 446829372. Its totient is φ = 442315552.

The previous prime is 444572449. The next prime is 444572467. The reversal of 444572461 is 164275444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 256608361 + 187964100 = 16019^2 + 13710^2 .

It is a cyclic number.

It is not a de Polignac number, because 444572461 - 2¹³ = 444564269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444572461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444572467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128160 + ... + 1128553.

It is an arithmetic number, because the mean of its divisors is an integer number (111707343).

Almost surely, 2^444572461 is an apocalyptic number.

It is an amenable number.

444572461 is a deficient number, since it is larger than the sum of its proper divisors (2256911).

444572461 is a wasteful number, since it uses less digits than its factorization.

444572461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256910.

The product of its digits is 107520, while the sum is 37.

The square root of 444572461 is about 21084.8870283907. The cubic root of 444572461 is about 763.2160925223.

The spelling of 444572461 in words is "four hundred forty-four million, five hundred seventy-two thousand, four hundred sixty-one".