100433441 has 4 divisors (see below), whose sum is σ = 100455300. Its totient is φ = 100411584.

The previous prime is 100433419. The next prime is 100433447. The reversal of 100433441 is 144334001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78145600 + 22287841 = 8840^2 + 4721^2 .

It is a cyclic number.

It is not a de Polignac number, because 100433441 - 2¹⁰ = 100432417 is a prime.

It is a super-2 number, since 2×100433441² = 20173752142200962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100433447) 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, 1076 + ... + 14213.

It is an arithmetic number, because the mean of its divisors is an integer number (25113825).

Almost surely, 2^100433441 is an apocalyptic number.

It is an amenable number.

100433441 is a deficient number, since it is larger than the sum of its proper divisors (21859).

100433441 is an equidigital number, since it uses as much as digits as its factorization.

100433441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21858.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 100433441 is about 10021.6486168694. The cubic root of 100433441 is about 464.8285350780.

Adding to 100433441 its reverse (144334001), we get a palindrome (244767442).

The spelling of 100433441 in words is "one hundred million, four hundred thirty-three thousand, four hundred forty-one".