400443011242242 has 16 divisors (see below), whose sum is σ = 843037918404960. Its totient is φ = 126455687760672.

The previous prime is 400443011242237. The next prime is 400443011242283. The reversal of 400443011242242 is 242242110344004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1756328996563 + ... + 1756328996790.

It is an arithmetic number, because the mean of its divisors is an integer number (52689869900310).

Almost surely, 2^{400443011242242} is an apocalyptic number.

400443011242242 is an abundant number, since it is smaller than the sum of its proper divisors (442594907162718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400443011242242 is a wasteful number, since it uses less digits than its factorization.

400443011242242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512657993377.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 400443011242242 its reverse (242242110344004), we get a palindrome (642685121586246).

The spelling of 400443011242242 in words is "four hundred trillion, four hundred forty-three billion, eleven million, two hundred forty-two thousand, two hundred forty-two".