100440437 has 16 divisors (see below), whose sum is σ = 108798912. Its totient is φ = 92378880.

The previous prime is 100440421. The next prime is 100440497. The reversal of 100440437 is 734044001.

It is a cyclic number.

It is not a de Polignac number, because 100440437 - 2⁴ = 100440421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100440407) 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 15 ways as a sum of consecutive naturals, for example, 185387 + ... + 185927.

It is an arithmetic number, because the mean of its divisors is an integer number (6799932).

Almost surely, 2^100440437 is an apocalyptic number.

100440437 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

100440437 is a deficient number, since it is larger than the sum of its proper divisors (8358475).

100440437 is a wasteful number, since it uses less digits than its factorization.

100440437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 100440437 is about 10021.9976551584. The cubic root of 100440437 is about 464.8393278475.

Adding to 100440437 its reverse (734044001), we get a palindrome (834484438).

The spelling of 100440437 in words is "one hundred million, four hundred forty thousand, four hundred thirty-seven".