440239808 has 28 divisors (see below), whose sum is σ = 874577880. Its totient is φ = 219873792.

The previous prime is 440239777. The next prime is 440239853. The reversal of 440239808 is 808932044.

It is a super-2 number, since 2×440239808² = 387622177095753728, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 62783 + ... + 69441.

Almost surely, 2^440239808 is an apocalyptic number.

It is an amenable number.

440239808 is a deficient number, since it is larger than the sum of its proper divisors (434338072).

440239808 is a wasteful number, since it uses less digits than its factorization.

440239808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7704 (or 7694 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 440239808 is about 20981.8923836722. The cubic root of 440239808 is about 760.7286456056.

The spelling of 440239808 in words is "four hundred forty million, two hundred thirty-nine thousand, eight hundred eight".