440448040 has 16 divisors (see below), whose sum is σ = 991008180. Its totient is φ = 176179200.

The previous prime is 440447983. The next prime is 440448067. The reversal of 440448040 is 40844044.

It can be written as a sum of positive squares in 2 ways, for example, as 405377956 + 35070084 = 20134^2 + 5922^2 .

It is a super-3 number, since 3×440448040³ (a number of 27 digits) contains 333 as substring.

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, 5505561 + ... + 5505640.

Almost surely, 2^440448040 is an apocalyptic number.

440448040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440448040 is an abundant number, since it is smaller than the sum of its proper divisors (550560140).

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

440448040 is a wasteful number, since it uses less digits than its factorization.

440448040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011212 (or 11011208 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 440448040 is about 20986.8539805279. The cubic root of 440448040 is about 760.8485674267.

The spelling of 440448040 in words is "four hundred forty million, four hundred forty-eight thousand, forty".