400241443 has 4 divisors (see below), whose sum is σ = 457418800. Its totient is φ = 343064088.

The previous prime is 400241411. The next prime is 400241477. The reversal of 400241443 is 344142004.

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 400241443 - 2⁵ = 400241411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400241483) 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 3 ways as a sum of consecutive naturals, for example, 28588668 + ... + 28588681.

It is an arithmetic number, because the mean of its divisors is an integer number (114354700).

Almost surely, 2^400241443 is an apocalyptic number.

400241443 is a deficient number, since it is larger than the sum of its proper divisors (57177357).

400241443 is an equidigital number, since it uses as much as digits as its factorization.

400241443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57177356.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 400241443 is about 20006.0351644198. The cubic root of 400241443 is about 736.9545171799.

Adding to 400241443 its reverse (344142004), we get a palindrome (744383447).

The spelling of 400241443 in words is "four hundred million, two hundred forty-one thousand, four hundred forty-three".