440478240 has 96 divisors (see below), whose sum is σ = 1419840576. Its totient is φ = 114723840.

The previous prime is 440478239. The next prime is 440478253. The reversal of 440478240 is 42874044.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9970 + ... + 31310.

It is an arithmetic number, because the mean of its divisors is an integer number (14790006).

Almost surely, 2^440478240 is an apocalyptic number.

440478240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440478240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709920288).

440478240 is an abundant number, since it is smaller than the sum of its proper divisors (979362336).

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

440478240 is a wasteful number, since it uses less digits than its factorization.

440478240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21402 (or 21394 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 33.

The square root of 440478240 is about 20987.5734662204. The cubic root of 440478240 is about 760.8659566149.

The spelling of 440478240 in words is "four hundred forty million, four hundred seventy-eight thousand, two hundred forty".