100404044442 has 24 divisors (see below), whose sum is σ = 234276104244. Its totient is φ = 30893552064.

The previous prime is 100404044431. The next prime is 100404044483. The reversal of 100404044442 is 244440404001.

100404044442 is a `hidden beast` number, since 100 + 40 + 40 + 44 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 77829282441 + 22574762001 = 278979^2 + 150249^2 .

It is a super-2 number, since 2×100404044442² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214538323 + ... + 214538790.

Almost surely, 2^100404044442 is an apocalyptic number.

100404044442 is an abundant number, since it is smaller than the sum of its proper divisors (133872059802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100404044442 is a wasteful number, since it uses less digits than its factorization.

100404044442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429077134 (or 429077131 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 100404044442 its reverse (244440404001), we get a palindrome (344844448443).

The spelling of 100404044442 in words is "one hundred billion, four hundred four million, forty-four thousand, four hundred forty-two".