440144268 has 12 divisors (see below), whose sum is σ = 1027003320. Its totient is φ = 146714752.

The previous prime is 440144209. The next prime is 440144273. The reversal of 440144268 is 862441044.

It is a tau number, because it is divible by the number of its divisors (12).

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, 18339333 + ... + 18339356.

It is an arithmetic number, because the mean of its divisors is an integer number (85583610).

Almost surely, 2^440144268 is an apocalyptic number.

It is an amenable number.

440144268 is an abundant number, since it is smaller than the sum of its proper divisors (586859052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440144268 is a wasteful number, since it uses less digits than its factorization.

440144268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36678696 (or 36678694 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 440144268 is about 20979.6155350855. The cubic root of 440144268 is about 760.6736109997.

The spelling of 440144268 in words is "four hundred forty million, one hundred forty-four thousand, two hundred sixty-eight".