3403704640 has 252 divisors, whose sum is σ = 10072083996. Its totient is φ = 1088618496.

The previous prime is 3403704617. The next prime is 3403704641. The reversal of 3403704640 is 464073043.

It can be written as a sum of positive squares in 6 ways, for example, as 1008189504 + 2395515136 = 31752^2 + 48944^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3403704641) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30121224 + ... + 30121336.

Almost surely, 2^3403704640 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 3403704640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5036041998).

3403704640 is an abundant number, since it is smaller than the sum of its proper divisors (6668379356).

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

3403704640 is a wasteful number, since it uses less digits than its factorization.

3403704640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 3403704640 is about 58341.2773257494. The cubic root of 3403704640 is about 1504.2405398436.

Adding to 3403704640 its reverse (464073043), we get a palindrome (3867777683).

The spelling of 3403704640 in words is "three billion, four hundred three million, seven hundred four thousand, six hundred forty".