100434120 has 32 divisors (see below), whose sum is σ = 301302720. Its totient is φ = 26782400.

The previous prime is 100434083. The next prime is 100434143. The reversal of 100434120 is 21434001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 100434120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418356 + ... + 418595.

It is an arithmetic number, because the mean of its divisors is an integer number (9415710).

Almost surely, 2^100434120 is an apocalyptic number.

100434120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100434120 is an abundant number, since it is smaller than the sum of its proper divisors (200868600).

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

100434120 is a wasteful number, since it uses less digits than its factorization.

100434120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836965 (or 836961 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 100434120 is about 10021.6824934738. The cubic root of 100434120 is about 464.8295825972.

Adding to 100434120 its reverse (21434001), we get a palindrome (121868121).

The spelling of 100434120 in words is "one hundred million, four hundred thirty-four thousand, one hundred twenty".