4430320040 has 16 divisors (see below), whose sum is σ = 9968220180. Its totient is φ = 1772128000.

The previous prime is 4430320039. The next prime is 4430320061. The reversal of 4430320040 is 400230344.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4375293316 + 55026724 = 66146^2 + 7418^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4430319994 and 4430320021.

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, 55378961 + ... + 55379040.

Almost surely, 2^4430320040 is an apocalyptic number.

4430320040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4430320040 is an abundant number, since it is smaller than the sum of its proper divisors (5537900140).

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

4430320040 is a wasteful number, since it uses less digits than its factorization.

4430320040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110758012 (or 110758008 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 4430320040 is about 66560.6493357750. The cubic root of 4430320040 is about 1642.3978457596.

Adding to 4430320040 its reverse (400230344), we get a palindrome (4830550384).

The spelling of 4430320040 in words is "four billion, four hundred thirty million, three hundred twenty thousand, forty".