442100100 has 72 divisors (see below), whose sum is σ = 1377550720. Its totient is φ = 108823680.

The previous prime is 442100093. The next prime is 442100119. The reversal of 442100100 is 1001244.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52780 + ... + 60579.

Almost surely, 2^442100100 is an apocalyptic number.

It is an amenable number.

442100100 is an abundant number, since it is smaller than the sum of its proper divisors (935450620).

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

442100100 is a wasteful number, since it uses less digits than its factorization.

442100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113389 (or 113382 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 442100100 is about 21026.1765425861. The cubic root of 442100100 is about 761.7986599584.

Adding to 442100100 its reverse (1001244), we get a palindrome (443101344).

The spelling of 442100100 in words is "four hundred forty-two million, one hundred thousand, one hundred".