440536634 has 16 divisors (see below), whose sum is σ = 678519072. Its totient is φ = 214399248.

The previous prime is 440536631. The next prime is 440536637. The reversal of 440536634 is 436635044.

It is an interprime number because it is at equal distance from previous prime (440536631) and next prime (440536637).

It is a junction number, because it is equal to n+sod(n) for n = 440536594 and 440536603.

It is not an unprimeable number, because it can be changed into a prime (440536631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16457 + ... + 33939.

It is an arithmetic number, because the mean of its divisors is an integer number (42407442).

Almost surely, 2^440536634 is an apocalyptic number.

440536634 is a deficient number, since it is larger than the sum of its proper divisors (237982438).

440536634 is a wasteful number, since it uses less digits than its factorization.

440536634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17821.

The product of its (nonzero) digits is 103680, while the sum is 35.

The square root of 440536634 is about 20988.9645766531. The cubic root of 440536634 is about 760.8995776805.

The spelling of 440536634 in words is "four hundred forty million, five hundred thirty-six thousand, six hundred thirty-four".