100423344 has 60 divisors (see below), whose sum is σ = 301789464. Its totient is φ = 28691712.

The previous prime is 100423339. The next prime is 100423357. The reversal of 100423344 is 443324001.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 100423344.

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, 18997 + ... + 23700.

Almost surely, 2^100423344 is an apocalyptic number.

100423344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

100423344 is an abundant number, since it is smaller than the sum of its proper divisors (201366120).

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

100423344 is a wasteful number, since it uses less digits than its factorization.

100423344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42722 (or 42709 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 100423344 is about 10021.1448447770. The cubic root of 100423344 is about 464.8129574943.

Adding to 100423344 its reverse (443324001), we get a palindrome (543747345).

The spelling of 100423344 in words is "one hundred million, four hundred twenty-three thousand, three hundred forty-four".