100440255 has 16 divisors (see below), whose sum is σ = 160911360. Its totient is φ = 53499168.

The previous prime is 100440239. The next prime is 100440323. The reversal of 100440255 is 552044001.

It is not a de Polignac number, because 100440255 - 2⁴ = 100440239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9066 + ... + 16824.

It is an arithmetic number, because the mean of its divisors is an integer number (10056960).

Almost surely, 2^100440255 is an apocalyptic number.

100440255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100440255 is a deficient number, since it is larger than the sum of its proper divisors (60471105).

100440255 is an equidigital number, since it uses as much as digits as its factorization.

100440255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8630.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 100440255 is about 10021.9885751282. The cubic root of 100440255 is about 464.8390470814.

Adding to 100440255 its reverse (552044001), we get a palindrome (652484256).

The spelling of 100440255 in words is "one hundred million, four hundred forty thousand, two hundred fifty-five".