100340244 has 18 divisors (see below), whose sum is σ = 253637930. Its totient is φ = 33446736.

The previous prime is 100340153. The next prime is 100340249. The reversal of 100340244 is 442043001.

It can be written as a sum of positive squares in only one way, i.e., 61027344 + 39312900 = 7812^2 + 6270^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100340249) 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 5 ways as a sum of consecutive naturals, for example, 1393579 + ... + 1393650.

Almost surely, 2^100340244 is an apocalyptic number.

It is an amenable number.

100340244 is an abundant number, since it is smaller than the sum of its proper divisors (153297686).

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

100340244 is a wasteful number, since it uses less digits than its factorization.

100340244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787239 (or 2787234 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 100340244 is about 10016.9977538183. The cubic root of 100340244 is about 464.6847116953.

Adding to 100340244 its reverse (442043001), we get a palindrome (542383245).

The spelling of 100340244 in words is "one hundred million, three hundred forty thousand, two hundred forty-four".