440506887 has 8 divisors (see below), whose sum is σ = 618255360. Its totient is φ = 278214840.

The previous prime is 440506861. The next prime is 440506901. The reversal of 440506887 is 788605044.

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

It is not a de Polignac number, because 440506887 - 2¹⁵ = 440474119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440506817) 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, 3864039 + ... + 3864152.

It is an arithmetic number, because the mean of its divisors is an integer number (77281920).

Almost surely, 2^440506887 is an apocalyptic number.

440506887 is a deficient number, since it is larger than the sum of its proper divisors (177748473).

440506887 is a wasteful number, since it uses less digits than its factorization.

440506887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7728213.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 440506887 is about 20988.2559304007. The cubic root of 440506887 is about 760.8824508497.

The spelling of 440506887 in words is "four hundred forty million, five hundred six thousand, eight hundred eighty-seven".