440344816 has 20 divisors (see below), whose sum is σ = 882588600. Its totient is φ = 212580032.

The previous prime is 440344813. The next prime is 440344831. The reversal of 440344816 is 618443044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440344813) 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, 474046 + ... + 474973.

It is an arithmetic number, because the mean of its divisors is an integer number (44129430).

Almost surely, 2^440344816 is an apocalyptic number.

It is an amenable number.

440344816 is an abundant number, since it is smaller than the sum of its proper divisors (442243784).

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

440344816 is a wasteful number, since it uses less digits than its factorization.

440344816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949056 (or 949050 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 440344816 is about 20984.3945826416. The cubic root of 440344816 is about 760.7891249487.

The spelling of 440344816 in words is "four hundred forty million, three hundred forty-four thousand, eight hundred sixteen".