3450820 has 12 divisors (see below), whose sum is σ = 7246764. Its totient is φ = 1380320.

The previous prime is 3450817. The next prime is 3450829. The reversal of 3450820 is 280543.

3450820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1382976 + 2067844 = 1176^2 + 1438^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3450791 and 3450800.

It is not an unprimeable number, because it can be changed into a prime (3450829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86251 + ... + 86290.

It is an arithmetic number, because the mean of its divisors is an integer number (603897).

Almost surely, 2^3450820 is an apocalyptic number.

It is an amenable number.

3450820 is an abundant number, since it is smaller than the sum of its proper divisors (3795944).

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

3450820 is a wasteful number, since it uses less digits than its factorization.

3450820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172550 (or 172548 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 3450820 is about 1857.6382855658. The cubic root of 3450820 is about 151.1149512833.

The spelling of 3450820 in words is "three million, four hundred fifty thousand, eight hundred twenty".