205401441 has 8 divisors (see below), whose sum is σ = 312992704. Its totient is φ = 117372240.

The previous prime is 205401433. The next prime is 205401481. The reversal of 205401441 is 144104502.

It is a happy number.

205401441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205401441 - 2³ = 205401433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 9781021 = 205401441 / (2 + 0 + 5 + 4 + 0 + 1 + 4 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205401401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4890490 + ... + 4890531.

It is an arithmetic number, because the mean of its divisors is an integer number (39124088).

Almost surely, 2^205401441 is an apocalyptic number.

205401441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

205401441 is a deficient number, since it is larger than the sum of its proper divisors (107591263).

205401441 is an equidigital number, since it uses as much as digits as its factorization.

205401441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9781031.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 205401441 is about 14331.8331346691. The cubic root of 205401441 is about 590.0214882531.

Adding to 205401441 its reverse (144104502), we get a palindrome (349505943).

The spelling of 205401441 in words is "two hundred five million, four hundred one thousand, four hundred forty-one".