10004200442 has 4 divisors (see below), whose sum is σ = 15006300666. Its totient is φ = 5002100220.

The previous prime is 10004200399. The next prime is 10004200501. The reversal of 10004200442 is 24400240001.

It is a Cunningham number, because it is equal to 100021²+1.

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., 10004200441 + 1 = 100021^2 + 1^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10004200442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2501050109 + ... + 2501050112.

Almost surely, 2^10004200442 is an apocalyptic number.

10004200442 is a deficient number, since it is larger than the sum of its proper divisors (5002100224).

10004200442 is an equidigital number, since it uses as much as digits as its factorization.

10004200442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002100223.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 10004200442 its reverse (24400240001), we get a palindrome (34404440443).

The spelling of 10004200442 in words is "ten billion, four million, two hundred thousand, four hundred forty-two".