440144087 has 4 divisors (see below), whose sum is σ = 450380040. Its totient is φ = 429908136.

The previous prime is 440144057. The next prime is 440144099. The reversal of 440144087 is 780441044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 440144087 - 2⁸ = 440143831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440144017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5117912 + ... + 5117997.

It is an arithmetic number, because the mean of its divisors is an integer number (112595010).

Almost surely, 2^440144087 is an apocalyptic number.

440144087 is a deficient number, since it is larger than the sum of its proper divisors (10235953).

440144087 is a wasteful number, since it uses less digits than its factorization.

440144087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10235952.

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 440144087 is about 20979.6112213740. The cubic root of 440144087 is about 760.6735067294.

The spelling of 440144087 in words is "four hundred forty million, one hundred forty-four thousand, eighty-seven".