401100243 has 32 divisors (see below), whose sum is σ = 567862272. Its totient is φ = 251328000.

The previous prime is 401100211. The next prime is 401100269. The reversal of 401100243 is 342001104.

It is not a de Polignac number, because 401100243 - 2⁵ = 401100211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (401107243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1427263 + ... + 1427543.

It is an arithmetic number, because the mean of its divisors is an integer number (17745696).

Almost surely, 2^401100243 is an apocalyptic number.

401100243 is a deficient number, since it is larger than the sum of its proper divisors (166762029).

401100243 is a wasteful number, since it uses less digits than its factorization.

401100243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 401100243 is about 20027.4871863646. The cubic root of 401100243 is about 737.4812362553.

Adding to 401100243 its reverse (342001104), we get a palindrome (743101347).

The spelling of 401100243 in words is "four hundred one million, one hundred thousand, two hundred forty-three".