400241242 has 8 divisors (see below), whose sum is σ = 605870100. Its totient is φ = 198284544.

The previous prime is 400241203. The next prime is 400241249. The reversal of 400241242 is 242142004.

It can be written as a sum of positive squares in 2 ways, for example, as 358004241 + 42237001 = 18921^2 + 6499^2 .

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

It is not an unprimeable number, because it can be changed into a prime (400241249) 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, 917767 + ... + 918202.

Almost surely, 2^400241242 is an apocalyptic number.

400241242 is a deficient number, since it is larger than the sum of its proper divisors (205628858).

400241242 is a wasteful number, since it uses less digits than its factorization.

400241242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836080.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 400241242 is about 20006.0301409350. The cubic root of 400241242 is about 736.9543938144.

Adding to 400241242 its reverse (242142004), we get a palindrome (642383246).

The spelling of 400241242 in words is "four hundred million, two hundred forty-one thousand, two hundred forty-two".