3420320 has 24 divisors (see below), whose sum is σ = 8080884. Its totient is φ = 1368064.

The previous prime is 3420299. The next prime is 3420337. The reversal of 3420320 is 230243.

It can be written as a sum of positive squares in 2 ways, for example, as 3055504 + 364816 = 1748^2 + 604^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3420295 and 3420304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10529 + ... + 10848.

Almost surely, 2^3420320 is an apocalyptic number.

It is an amenable number.

3420320 is an abundant number, since it is smaller than the sum of its proper divisors (4660564).

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

3420320 is a wasteful number, since it uses less digits than its factorization.

3420320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21392 (or 21384 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 3420320 is about 1849.4107169582. The cubic root of 3420320 is about 150.6684243754.

Adding to 3420320 its reverse (230243), we get a palindrome (3650563).

The spelling of 3420320 in words is "three million, four hundred twenty thousand, three hundred twenty".