100440315 has 24 divisors (see below), whose sum is σ = 174894720. Its totient is φ = 53322624.

The previous prime is 100440239. The next prime is 100440323. The reversal of 100440315 is 513044001.

It is a happy number.

It is not a de Polignac number, because 100440315 - 2⁹ = 100439803 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5031 + ... + 15039.

It is an arithmetic number, because the mean of its divisors is an integer number (7287280).

Almost surely, 2^100440315 is an apocalyptic number.

100440315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100440315 is a deficient number, since it is larger than the sum of its proper divisors (74454405).

100440315 is a wasteful number, since it uses less digits than its factorization.

100440315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10243 (or 10240 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 100440315 is about 10021.9915685456. The cubic root of 100440315 is about 464.8391396417.

Adding to 100440315 its reverse (513044001), we get a palindrome (613484316).

The spelling of 100440315 in words is "one hundred million, four hundred forty thousand, three hundred fifteen".