440865040 has 80 divisors (see below), whose sum is σ = 1277953920. Its totient is φ = 137410560.

The previous prime is 440865023. The next prime is 440865067. The reversal of 440865040 is 40568044.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 440864993 and 440865011.

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, 29625 + ... + 41944.

It is an arithmetic number, because the mean of its divisors is an integer number (15974424).

Almost surely, 2^440865040 is an apocalyptic number.

440865040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440865040 is an abundant number, since it is smaller than the sum of its proper divisors (837088880).

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

440865040 is a wasteful number, since it uses less digits than its factorization.

440865040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71600 (or 71594 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 440865040 is about 20996.7864207835. The cubic root of 440865040 is about 761.0886061666.

The spelling of 440865040 in words is "four hundred forty million, eight hundred sixty-five thousand, forty".