440013764 has 6 divisors (see below), whose sum is σ = 770024094. Its totient is φ = 220006880.

The previous prime is 440013689. The next prime is 440013779. The reversal of 440013764 is 467310044.

It can be written as a sum of positive squares in only one way, i.e., 357966400 + 82047364 = 18920^2 + 9058^2 .

It is a super-2 number, since 2×440013764² = 387224225018895392, 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 as a sum of consecutive naturals, namely, 55001717 + ... + 55001724.

It is an arithmetic number, because the mean of its divisors is an integer number (128337349).

Almost surely, 2^440013764 is an apocalyptic number.

It is an amenable number.

440013764 is a deficient number, since it is larger than the sum of its proper divisors (330010330).

440013764 is a wasteful number, since it uses less digits than its factorization.

440013764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110003445 (or 110003443 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 440013764 is about 20976.5050473142. The cubic root of 440013764 is about 760.5984229541.

The spelling of 440013764 in words is "four hundred forty million, thirteen thousand, seven hundred sixty-four".