440459811 has 24 divisors (see below), whose sum is σ = 716451840. Its totient is φ = 258332400.

The previous prime is 440459791. The next prime is 440459819. The reversal of 440459811 is 118954044.

It is not a de Polignac number, because 440459811 - 2¹⁰ = 440458787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (440459819) 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 23 ways as a sum of consecutive naturals, for example, 68691 + ... + 74828.

It is an arithmetic number, because the mean of its divisors is an integer number (29852160).

Almost surely, 2^440459811 is an apocalyptic number.

440459811 is a deficient number, since it is larger than the sum of its proper divisors (275992029).

440459811 is a wasteful number, since it uses less digits than its factorization.

440459811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143567 (or 143564 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 440459811 is about 20987.1344161131. The cubic root of 440459811 is about 760.8553452740.

The spelling of 440459811 in words is "four hundred forty million, four hundred fifty-nine thousand, eight hundred eleven".