200424420442 has 4 divisors (see below), whose sum is σ = 300636630666. Its totient is φ = 100212210220.

The previous prime is 200424420421. The next prime is 200424420517. The reversal of 200424420442 is 244024424002.

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., 141059585241 + 59364835201 = 375579^2 + 243649^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 200424420442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50106105109 + ... + 50106105112.

Almost surely, 2^200424420442 is an apocalyptic number.

200424420442 is a deficient number, since it is larger than the sum of its proper divisors (100212210224).

200424420442 is a wasteful number, since it uses less digits than its factorization.

200424420442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100212210223.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 200424420442 its reverse (244024424002), we get a palindrome (444448844444).

The spelling of 200424420442 in words is "two hundred billion, four hundred twenty-four million, four hundred twenty thousand, four hundred forty-two".