100044427 has 12 divisors (see below), whose sum is σ = 116555880. Its totient is φ = 85621536.

The previous prime is 100044391. The next prime is 100044431. The reversal of 100044427 is 724440001.

It is not a de Polignac number, because 100044427 - 2²³ = 91655819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100044398 and 100044407.

It is not an unprimeable number, because it can be changed into a prime (100044487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44824 + ... + 47002.

It is an arithmetic number, because the mean of its divisors is an integer number (9712990).

Almost surely, 2^100044427 is an apocalyptic number.

100044427 is a deficient number, since it is larger than the sum of its proper divisors (16511453).

100044427 is an equidigital number, since it uses as much as digits as its factorization.

100044427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130 (or 3123 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 100044427 is about 10002.2211033350. The cubic root of 100044427 is about 464.2276104735.

Adding to 100044427 its reverse (724440001), we get a palindrome (824484428).

The spelling of 100044427 in words is "one hundred million, forty-four thousand, four hundred twenty-seven".