100440344 has 8 divisors (see below), whose sum is σ = 188325660. Its totient is φ = 50220168.

The previous prime is 100440337. The next prime is 100440349. The reversal of 100440344 is 443044001.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100440349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6277514 + ... + 6277529.

Almost surely, 2^100440344 is an apocalyptic number.

It is an amenable number.

100440344 is a deficient number, since it is larger than the sum of its proper divisors (87885316).

100440344 is a wasteful number, since it uses less digits than its factorization.

100440344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12555049 (or 12555045 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 100440344 is about 10021.9930153638. The cubic root of 100440344 is about 464.8391843791.

Adding to 100440344 its reverse (443044001), we get a palindrome (543484345).

The spelling of 100440344 in words is "one hundred million, four hundred forty thousand, three hundred forty-four".