440740740 has 96 divisors (see below), whose sum is σ = 1366493184. Its totient is φ = 105240960.

The previous prime is 440740717. The next prime is 440740757. The reversal of 440740740 is 47047044.

It is a Harshad number since it is a multiple of its sum of digits (30).

440740740 is a modest number, since divided by 740740 gives 440 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 440740698 and 440740707.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39237 + ... + 49203.

It is an arithmetic number, because the mean of its divisors is an integer number (14234304).

Almost surely, 2^440740740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440740740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683246592).

440740740 is an abundant number, since it is smaller than the sum of its proper divisors (925752444).

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

440740740 is a wasteful number, since it uses less digits than its factorization.

440740740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057 (or 10055 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 440740740 is about 20993.8262353483. The cubic root of 440740740 is about 761.0170708912.

Adding to 440740740 its reverse (47047044), we get a palindrome (487787784).

The spelling of 440740740 in words is "four hundred forty million, seven hundred forty thousand, seven hundred forty".