440645051 has 16 divisors (see below), whose sum is σ = 550368000. Its totient is φ = 342739680.

The previous prime is 440645047. The next prime is 440645057. The reversal of 440645051 is 150546044.

It is a cyclic number.

It is not a de Polignac number, because 440645051 - 2² = 440645047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (440645057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40325 + ... + 50073.

It is an arithmetic number, because the mean of its divisors is an integer number (34398000).

Almost surely, 2^440645051 is an apocalyptic number.

440645051 is a deficient number, since it is larger than the sum of its proper divisors (109722949).

440645051 is a wasteful number, since it uses less digits than its factorization.

440645051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10354.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 440645051 is about 20991.5471321196. The cubic root of 440645051 is about 760.9619922273.

The spelling of 440645051 in words is "four hundred forty million, six hundred forty-five thousand, fifty-one".