100401403444 has 12 divisors (see below), whose sum is σ = 175813741600. Its totient is φ = 50168905848.

The previous prime is 100401403387. The next prime is 100401403447. The reversal of 100401403444 is 444304104001.

It is a happy number.

100401403444 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×100401403444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100401403447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7941864 + ... + 7954495.

Almost surely, 2^100401403444 is an apocalyptic number.

It is an amenable number.

100401403444 is a deficient number, since it is larger than the sum of its proper divisors (75412338156).

100401403444 is a wasteful number, since it uses less digits than its factorization.

100401403444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15897942 (or 15897940 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 100401403444 its reverse (444304104001), we get a palindrome (544705507445).

The spelling of 100401403444 in words is "one hundred billion, four hundred one million, four hundred three thousand, four hundred forty-four".