6402020206 has 8 divisors (see below), whose sum is σ = 9612513144. Its totient is φ = 3197849160.

The previous prime is 6402020197. The next prime is 6402020221. The reversal of 6402020206 is 6020202046.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1577940 + ... + 1581991.

It is an arithmetic number, because the mean of its divisors is an integer number (1201564143).

Almost surely, 2^6402020206 is an apocalyptic number.

6402020206 is a deficient number, since it is larger than the sum of its proper divisors (3210492938).

6402020206 is a wasteful number, since it uses less digits than its factorization.

6402020206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160946.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 6402020206 is about 80012.6252912626. The cubic root of 6402020206 is about 1856.8308663440.

The spelling of 6402020206 in words is "six billion, four hundred two million, twenty thousand, two hundred six".