400041241 has 4 divisors (see below), whose sum is σ = 405521332. Its totient is φ = 394561152.

The previous prime is 400041217. The next prime is 400041247. The reversal of 400041241 is 142140004.

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 179667216 + 220374025 = 13404^2 + 14845^2 .

It is a cyclic number.

It is not a de Polignac number, because 400041241 - 2⁷ = 400041113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400041247) 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, 2739936 + ... + 2740081.

It is an arithmetic number, because the mean of its divisors is an integer number (101380333).

Almost surely, 2^400041241 is an apocalyptic number.

It is an amenable number.

400041241 is a deficient number, since it is larger than the sum of its proper divisors (5480091).

400041241 is an equidigital number, since it uses as much as digits as its factorization.

400041241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5480090.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 400041241 is about 20001.0309984261. The cubic root of 400041241 is about 736.8316210484.

Adding to 400041241 its reverse (142140004), we get a palindrome (542181245).

The spelling of 400041241 in words is "four hundred million, forty-one thousand, two hundred forty-one".