440645133 has 8 divisors (see below), whose sum is σ = 587641696. Its totient is φ = 293706000.

The previous prime is 440645119. The next prime is 440645137. The reversal of 440645133 is 331546044.

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

It is not a de Polignac number, because 440645133 - 2¹⁰ = 440644109 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 440645133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440645137) 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, 8958 + ... + 31008.

It is an arithmetic number, because the mean of its divisors is an integer number (73455212).

Almost surely, 2^440645133 is an apocalyptic number.

It is an amenable number.

440645133 is a deficient number, since it is larger than the sum of its proper divisors (146996563).

440645133 is a wasteful number, since it uses less digits than its factorization.

440645133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28715.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 440645133 is about 20991.5490852867. The cubic root of 440645133 is about 760.9620394300.

The spelling of 440645133 in words is "four hundred forty million, six hundred forty-five thousand, one hundred thirty-three".