6840202 has 4 divisors (see below), whose sum is σ = 10260306. Its totient is φ = 3420100.

The previous prime is 6840199. The next prime is 6840203. The reversal of 6840202 is 2020486.

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

It can be written as a sum of positive squares in only one way, i.e., 5958481 + 881721 = 2441^2 + 939^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6840203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710049 + ... + 1710052.

Almost surely, 2^6840202 is an apocalyptic number.

6840202 is a deficient number, since it is larger than the sum of its proper divisors (3420104).

6840202 is a wasteful number, since it uses less digits than its factorization.

6840202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420103.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 6840202 is about 2615.3779841545. The cubic root of 6840202 is about 189.8262677839.

Adding to 6840202 its reverse (2020486), we get a palindrome (8860688).

The spelling of 6840202 in words is "six million, eight hundred forty thousand, two hundred two".