3420365 has 16 divisors (see below), whose sum is σ = 4472496. Its totient is φ = 2496000.

The previous prime is 3420341. The next prime is 3420367. The reversal of 3420365 is 5630243.

It can be written as a sum of positive squares in 8 ways, for example, as 23716 + 3396649 = 154^2 + 1843^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3420365 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3420365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6305 + ... + 6825.

It is an arithmetic number, because the mean of its divisors is an integer number (279531).

Almost surely, 2^3420365 is an apocalyptic number.

It is an amenable number.

3420365 is a deficient number, since it is larger than the sum of its proper divisors (1052131).

3420365 is a wasteful number, since it uses less digits than its factorization.

3420365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 3420365 is about 1849.4228829557. The cubic root of 3420365 is about 150.6690851371.

The spelling of 3420365 in words is "three million, four hundred twenty thousand, three hundred sixty-five".