200420622406 has 4 divisors (see below), whose sum is σ = 300630933612. Its totient is φ = 100210311202.

The previous prime is 200420622397. The next prime is 200420622427. The reversal of 200420622406 is 604226024002.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105155600 + ... + 50105155603.

It is an arithmetic number, because the mean of its divisors is an integer number (75157733403).

Almost surely, 2^200420622406 is an apocalyptic number.

200420622406 is a deficient number, since it is larger than the sum of its proper divisors (100210311206).

200420622406 is a wasteful number, since it uses less digits than its factorization.

200420622406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100210311205.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 200420622406 its reverse (604226024002), we get a palindrome (804646646408).

The spelling of 200420622406 in words is "two hundred billion, four hundred twenty million, six hundred twenty-two thousand, four hundred six".