100026443 has 4 divisors (see below), whose sum is σ = 109119768. Its totient is φ = 90933120.

The previous prime is 100026413. The next prime is 100026457. The reversal of 100026443 is 344620001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100026443 - 2¹² = 100022347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100026413) 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, 4546646 + ... + 4546667.

It is an arithmetic number, because the mean of its divisors is an integer number (27279942).

Almost surely, 2^100026443 is an apocalyptic number.

100026443 is a deficient number, since it is larger than the sum of its proper divisors (9093325).

100026443 is an equidigital number, since it uses as much as digits as its factorization.

100026443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9093324.

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

The square root of 100026443 is about 10001.3220626075. The cubic root of 100026443 is about 464.1997922668.

Adding to 100026443 its reverse (344620001), we get a palindrome (444646444).

The spelling of 100026443 in words is "one hundred million, twenty-six thousand, four hundred forty-three".