100433412 has 48 divisors (see below), whose sum is σ = 263094720. Its totient is φ = 33129216.

The previous prime is 100433401. The next prime is 100433419. The reversal of 100433412 is 214334001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (100433419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5683 + ... + 15269.

It is an arithmetic number, because the mean of its divisors is an integer number (5481140).

Almost surely, 2^100433412 is an apocalyptic number.

100433412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100433412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131547360).

100433412 is an abundant number, since it is smaller than the sum of its proper divisors (162661308).

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

100433412 is a wasteful number, since it uses less digits than its factorization.

100433412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9697 (or 9689 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 100433412 is about 10021.6471700015. The cubic root of 100433412 is about 464.8284903385.

Adding to 100433412 its reverse (214334001), we get a palindrome (314767413).

The spelling of 100433412 in words is "one hundred million, four hundred thirty-three thousand, four hundred twelve".