3242405 has 4 divisors (see below), whose sum is σ = 3890892. Its totient is φ = 2593920.

The previous prime is 3242399. The next prime is 3242417. The reversal of 3242405 is 5042423.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 889249 + 2353156 = 943^2 + 1534^2 .

It is not a de Polignac number, because 3242405 - 2⁶ = 3242341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324236 + ... + 324245.

It is an arithmetic number, because the mean of its divisors is an integer number (972723).

Almost surely, 2^3242405 is an apocalyptic number.

It is an amenable number.

3242405 is a deficient number, since it is larger than the sum of its proper divisors (648487).

3242405 is an equidigital number, since it uses as much as digits as its factorization.

3242405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648486.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 3242405 is about 1800.6679316298. The cubic root of 3242405 is about 148.0093279974.

Adding to 3242405 its reverse (5042423), we get a palindrome (8284828).

It can be divided in two parts, 3242 and 405, that multiplied together give a triangular number (1313010 = T₁₆₂₀).

The spelling of 3242405 in words is "three million, two hundred forty-two thousand, four hundred five".