100204442 has 32 divisors (see below), whose sum is σ = 171433920. Its totient is φ = 43545600.

The previous prime is 100204417. The next prime is 100204457. The reversal of 100204442 is 244402001.

It is a self number, because there is not a number n which added to its sum of digits gives 100204442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94817 + ... + 95867.

It is an arithmetic number, because the mean of its divisors is an integer number (5357310).

Almost surely, 2^100204442 is an apocalyptic number.

100204442 is a deficient number, since it is larger than the sum of its proper divisors (71229478).

100204442 is a wasteful number, since it uses less digits than its factorization.

100204442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278.

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

The square root of 100204442 is about 10010.2168807674. The cubic root of 100204442 is about 464.4749799491.

Adding to 100204442 its reverse (244402001), we get a palindrome (344606443).

The spelling of 100204442 in words is "one hundred million, two hundred four thousand, four hundred forty-two".