3405243 has 4 divisors (see below), whose sum is σ = 4540328. Its totient is φ = 2270160.

The previous prime is 3405217. The next prime is 3405247. The reversal of 3405243 is 3425043.

It is a happy number.

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

It is not a de Polignac number, because 3405243 - 2⁶ = 3405179 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3405247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567538 + ... + 567543.

It is an arithmetic number, because the mean of its divisors is an integer number (1135082).

Almost surely, 2^3405243 is an apocalyptic number.

3405243 is a deficient number, since it is larger than the sum of its proper divisors (1135085).

3405243 is a wasteful number, since it uses less digits than its factorization.

3405243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135084.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 3405243 is about 1845.3300517794. The cubic root of 3405243 is about 150.4467127751.

The spelling of 3405243 in words is "three million, four hundred five thousand, two hundred forty-three".