444640471 has 8 divisors (see below), whose sum is σ = 500709888. Its totient is φ = 391179000.

The previous prime is 444640447. The next prime is 444640501. The reversal of 444640471 is 174046444.

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

It is a cyclic number.

It is not a de Polignac number, because 444640471 - 2¹⁵ = 444607703 is a prime.

It is a super-3 number, since 3×444640471³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444640571) 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, 651625 + ... + 652306.

It is an arithmetic number, because the mean of its divisors is an integer number (62588736).

Almost surely, 2^444640471 is an apocalyptic number.

444640471 is a deficient number, since it is larger than the sum of its proper divisors (56069417).

444640471 is a wasteful number, since it uses less digits than its factorization.

444640471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303973.

The product of its (nonzero) digits is 43008, while the sum is 34.

The square root of 444640471 is about 21086.4997332416. The cubic root of 444640471 is about 763.2550090727.

The spelling of 444640471 in words is "four hundred forty-four million, six hundred forty thousand, four hundred seventy-one".