440665256402 has 24 divisors (see below), whose sum is σ = 802347037056. Its totient is φ = 180645383688.

The previous prime is 440665256399. The next prime is 440665256429. The reversal of 440665256402 is 204652566044.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97749578 + ... + 97754085.

It is an arithmetic number, because the mean of its divisors is an integer number (33431126544).

Almost surely, 2^440665256402 is an apocalyptic number.

440665256402 is a deficient number, since it is larger than the sum of its proper divisors (361681780654).

440665256402 is a wasteful number, since it uses less digits than its factorization.

440665256402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195503702 (or 195503695 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 440665256402 in words is "four hundred forty billion, six hundred sixty-five million, two hundred fifty-six thousand, four hundred two".