3420320304 has 80 divisors (see below), whose sum is σ = 9403514208. Its totient is φ = 1067544576.

The previous prime is 3420320297. The next prime is 3420320341. The reversal of 3420320304 is 4030230243.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150114 + ... + 171390.

Almost surely, 2^3420320304 is an apocalyptic number.

3420320304 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3420320304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4701757104).

3420320304 is an abundant number, since it is smaller than the sum of its proper divisors (5983193904).

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

3420320304 is a wasteful number, since it uses less digits than its factorization.

3420320304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21502 (or 21496 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 3420320304 is about 58483.5045461539. The cubic root of 3420320304 is about 1506.6842883922.

Adding to 3420320304 its reverse (4030230243), we get a palindrome (7450550547).

The spelling of 3420320304 in words is "three billion, four hundred twenty million, three hundred twenty thousand, three hundred four".