440455452 has 12 divisors (see below), whose sum is σ = 1027729416. Its totient is φ = 146818480.

The previous prime is 440455447. The next prime is 440455453. The reversal of 440455452 is 254554044.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440455453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18352299 + ... + 18352322.

It is an arithmetic number, because the mean of its divisors is an integer number (85644118).

Almost surely, 2^440455452 is an apocalyptic number.

It is an amenable number.

440455452 is an abundant number, since it is smaller than the sum of its proper divisors (587273964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440455452 is a wasteful number, since it uses less digits than its factorization.

440455452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36704628 (or 36704626 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 33.

The square root of 440455452 is about 20987.0305665189. The cubic root of 440455452 is about 760.8528353368.

The spelling of 440455452 in words is "four hundred forty million, four hundred fifty-five thousand, four hundred fifty-two".