3400420243 has 4 divisors (see below), whose sum is σ = 3709549368. Its totient is φ = 3091291120.

The previous prime is 3400420193. The next prime is 3400420271. The reversal of 3400420243 is 3420240043.

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

It is a cyclic number.

It is not a de Polignac number, because 3400420243 - 2²⁵ = 3366865811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3400420273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154564546 + ... + 154564567.

It is an arithmetic number, because the mean of its divisors is an integer number (927387342).

Almost surely, 2^3400420243 is an apocalyptic number.

3400420243 is a deficient number, since it is larger than the sum of its proper divisors (309129125).

3400420243 is a wasteful number, since it uses less digits than its factorization.

3400420243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309129124.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 3400420243 is about 58313.1223911051. The cubic root of 3400420243 is about 1503.7565463123.

Adding to 3400420243 its reverse (3420240043), we get a palindrome (6820660286).

The spelling of 3400420243 in words is "three billion, four hundred million, four hundred twenty thousand, two hundred forty-three".