440712378 has 12 divisors (see below), whose sum is σ = 954876858. Its totient is φ = 146904120.

The previous prime is 440712347. The next prime is 440712401. The reversal of 440712378 is 873217044.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 320875569 + 119836809 = 17913^2 + 10947^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12241993 + ... + 12242028.

Almost surely, 2^440712378 is an apocalyptic number.

440712378 is an abundant number, since it is smaller than the sum of its proper divisors (514164480).

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

440712378 is a wasteful number, since it uses less digits than its factorization.

440712378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24484029 (or 24484026 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 440712378 is about 20993.1507401819. The cubic root of 440712378 is about 761.0007465330. Note that the first 3 decimals are identical.

The spelling of 440712378 in words is "four hundred forty million, seven hundred twelve thousand, three hundred seventy-eight".