400241214442 has 4 divisors (see below), whose sum is σ = 600361821666. Its totient is φ = 200120607220.

The previous prime is 400241214391. The next prime is 400241214449. The reversal of 400241214442 is 244412142004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 235720931121 + 164520283321 = 485511^2 + 405611^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 400241214442.

It is not an unprimeable number, because it can be changed into a prime (400241214449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060303609 + ... + 100060303612.

Almost surely, 2^400241214442 is an apocalyptic number.

400241214442 is a deficient number, since it is larger than the sum of its proper divisors (200120607224).

400241214442 is a wasteful number, since it uses less digits than its factorization.

400241214442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200120607223.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 400241214442 its reverse (244412142004), we get a palindrome (644653356446).

The spelling of 400241214442 in words is "four hundred billion, two hundred forty-one million, two hundred fourteen thousand, four hundred forty-two".