440747707 has 4 divisors (see below), whose sum is σ = 441092520. Its totient is φ = 440402896.

The previous prime is 440747701. The next prime is 440747773. The reversal of 440747707 is 707747044.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440747707 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 440747707.

It is not an unprimeable number, because it can be changed into a prime (440747701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170482 + ... + 173047.

It is an arithmetic number, because the mean of its divisors is an integer number (110273130).

Almost surely, 2^440747707 is an apocalyptic number.

440747707 is a deficient number, since it is larger than the sum of its proper divisors (344813).

440747707 is a wasteful number, since it uses less digits than its factorization.

440747707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344812.

The product of its (nonzero) digits is 153664, while the sum is 40.

The square root of 440747707 is about 20993.9921644265. The cubic root of 440747707 is about 761.0210807905.

The spelling of 440747707 in words is "four hundred forty million, seven hundred forty-seven thousand, seven hundred seven".