440128772 has 12 divisors (see below), whose sum is σ = 770957376. Its totient is φ = 219855240.

The previous prime is 440128769. The next prime is 440128783. The reversal of 440128772 is 277821044.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47504 + ... + 56007.

It is an arithmetic number, because the mean of its divisors is an integer number (64246448).

Almost surely, 2^440128772 is an apocalyptic number.

It is an amenable number.

440128772 is a deficient number, since it is larger than the sum of its proper divisors (330828604).

440128772 is a wasteful number, since it uses less digits than its factorization.

440128772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104578 (or 104576 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 440128772 is about 20979.2462209680. The cubic root of 440128772 is about 760.6646839747.

The spelling of 440128772 in words is "four hundred forty million, one hundred twenty-eight thousand, seven hundred seventy-two".