440396428 has 12 divisors (see below), whose sum is σ = 771489432. Its totient is φ = 219970880.

The previous prime is 440396417. The next prime is 440396431. The reversal of 440396428 is 824693044.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52438 + ... + 60253.

It is an arithmetic number, because the mean of its divisors is an integer number (64290786).

Almost surely, 2^440396428 is an apocalyptic number.

It is an amenable number.

440396428 is a deficient number, since it is larger than the sum of its proper divisors (331093004).

440396428 is a wasteful number, since it uses less digits than its factorization.

440396428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113672 (or 113670 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 440396428 is about 20985.6243176132. The cubic root of 440396428 is about 760.8188473488.

The spelling of 440396428 in words is "four hundred forty million, three hundred ninety-six thousand, four hundred twenty-eight".