440008628 has 24 divisors (see below), whose sum is σ = 775656000. Its totient is φ = 218399168.

The previous prime is 440008609. The next prime is 440008649. The reversal of 440008628 is 826800044.

It is a junction number, because it is equal to n+sod(n) for n = 440008594 and 440008603.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 543488 + ... + 544296.

It is an arithmetic number, because the mean of its divisors is an integer number (32319000).

Almost surely, 2^440008628 is an apocalyptic number.

It is an amenable number.

440008628 is a deficient number, since it is larger than the sum of its proper divisors (335647372).

440008628 is a wasteful number, since it uses less digits than its factorization.

440008628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 440008628 is about 20976.3826242753. The cubic root of 440008628 is about 760.5954636158.

The spelling of 440008628 in words is "four hundred forty million, eight thousand, six hundred twenty-eight".