440687794 has 4 divisors (see below), whose sum is σ = 661031694. Its totient is φ = 220343896.

The previous prime is 440687777. The next prime is 440687809. The reversal of 440687794 is 497786044.

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

It can be written as a sum of positive squares in only one way, i.e., 400200025 + 40487769 = 20005^2 + 6363^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 110171947 + ... + 110171950.

Almost surely, 2^440687794 is an apocalyptic number.

440687794 is a deficient number, since it is larger than the sum of its proper divisors (220343900).

440687794 is a wasteful number, since it uses less digits than its factorization.

440687794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220343899.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The square root of 440687794 is about 20992.5652077110. The cubic root of 440687794 is about 760.9865961171.

The spelling of 440687794 in words is "four hundred forty million, six hundred eighty-seven thousand, seven hundred ninety-four".