440687434 has 16 divisors (see below), whose sum is σ = 738714816. Its totient is φ = 195426400.

The previous prime is 440687431. The next prime is 440687437. The reversal of 440687434 is 434786044.

It is an interprime number because it is at equal distance from previous prime (440687431) and next prime (440687437).

It is not an unprimeable number, because it can be changed into a prime (440687431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243382 + ... + 245185.

It is an arithmetic number, because the mean of its divisors is an integer number (46169676).

Almost surely, 2^440687434 is an apocalyptic number.

440687434 is a deficient number, since it is larger than the sum of its proper divisors (298027382).

440687434 is a wasteful number, since it uses less digits than its factorization.

440687434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488621.

The product of its (nonzero) digits is 258048, while the sum is 40.

The square root of 440687434 is about 20992.5566332450. The cubic root of 440687434 is about 760.9863888992.

The spelling of 440687434 in words is "four hundred forty million, six hundred eighty-seven thousand, four hundred thirty-four".