100440414 has 12 divisors (see below), whose sum is σ = 217620936. Its totient is φ = 33480132.

The previous prime is 100440413. The next prime is 100440421. The reversal of 100440414 is 414044001.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 5580023 = 100440414 / (1 + 0 + 0 + 4 + 4 + 0 + 4 + 1 + 4).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100440413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2789994 + ... + 2790029.

It is an arithmetic number, because the mean of its divisors is an integer number (18135078).

Almost surely, 2^100440414 is an apocalyptic number.

100440414 is an abundant number, since it is smaller than the sum of its proper divisors (117180522).

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

100440414 is a wasteful number, since it uses less digits than its factorization.

100440414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5580031 (or 5580028 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 100440414 is about 10021.9965076825. The cubic root of 100440414 is about 464.8392923661.

Adding to 100440414 its reverse (414044001), we get a palindrome (514484415).

The spelling of 100440414 in words is "one hundred million, four hundred forty thousand, four hundred fourteen".