100144040 has 32 divisors (see below), whose sum is σ = 225802080. Its totient is φ = 39972672.

The previous prime is 100144039. The next prime is 100144049. The reversal of 100144040 is 40441001.

It is not an unprimeable number, because it can be changed into a prime (100144049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18527 + ... + 23313.

It is an arithmetic number, because the mean of its divisors is an integer number (7056315).

Almost surely, 2^100144040 is an apocalyptic number.

100144040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100144040 is an abundant number, since it is smaller than the sum of its proper divisors (125658040).

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

100144040 is a wasteful number, since it uses less digits than its factorization.

100144040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5321 (or 5317 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 100144040 is about 10007.1994084259. The cubic root of 100144040 is about 464.3816345971.

Adding to 100144040 its reverse (40441001), we get a palindrome (140585041).

The spelling of 100144040 in words is "one hundred million, one hundred forty-four thousand, forty".