440155252 has 24 divisors (see below), whose sum is σ = 782320896. Its totient is φ = 216646848.

The previous prime is 440155237. The next prime is 440155259. The reversal of 440155252 is 252551044.

It is a self number, because there is not a number n which added to its sum of digits gives 440155252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440155259) 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, 198333 + ... + 200539.

It is an arithmetic number, because the mean of its divisors is an integer number (32596704).

Almost surely, 2^440155252 is an apocalyptic number.

It is an amenable number.

440155252 is a deficient number, since it is larger than the sum of its proper divisors (342165644).

440155252 is a wasteful number, since it uses less digits than its factorization.

440155252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967 (or 2965 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 440155252 is about 20979.8773113667. The cubic root of 440155252 is about 760.6799385988.

It can be divided in two parts, 4401552 and 52, that added together give a square (4401604 = 2098²).

The spelling of 440155252 in words is "four hundred forty million, one hundred fifty-five thousand, two hundred fifty-two".