440400460 has 12 divisors (see below), whose sum is σ = 924841008. Its totient is φ = 176160176.

The previous prime is 440400421. The next prime is 440400461. The reversal of 440400460 is 64004044.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (440400461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11009992 + ... + 11010031.

It is an arithmetic number, because the mean of its divisors is an integer number (77070084).

Almost surely, 2^440400460 is an apocalyptic number.

It is an amenable number.

440400460 is an abundant number, since it is smaller than the sum of its proper divisors (484440548).

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

440400460 is a wasteful number, since it uses less digits than its factorization.

440400460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22020032 (or 22020030 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 440400460 is about 20985.7203831558. The cubic root of 440400460 is about 760.8211692055.

The spelling of 440400460 in words is "four hundred forty million, four hundred thousand, four hundred sixty".