4399670340 has 72 divisors (see below), whose sum is σ = 14372264088. Its totient is φ = 1082995200.

The previous prime is 4399670311. The next prime is 4399670347. The reversal of 4399670340 is 430769934.

It can be written as a sum of positive squares in 4 ways, for example, as 65028096 + 4334642244 = 8064^2 + 65838^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (4399670347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 937761 + ... + 942440.

It is an arithmetic number, because the mean of its divisors is an integer number (199614779).

Almost surely, 2^4399670340 is an apocalyptic number.

It is an amenable number.

4399670340 is an abundant number, since it is smaller than the sum of its proper divisors (9972593748).

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

4399670340 is a wasteful number, since it uses less digits than its factorization.

4399670340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880229 (or 1880224 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The square root of 4399670340 is about 66330.0108548159. The cubic root of 4399670340 is about 1638.6016163231.

The spelling of 4399670340 in words is "four billion, three hundred ninety-nine million, six hundred seventy thousand, three hundred forty".