401144443242 has 16 divisors (see below), whose sum is σ = 802304263200. Its totient is φ = 133712251632.

The previous prime is 401144443241. The next prime is 401144443247. The reversal of 401144443242 is 242344441104.

It is not an unprimeable number, because it can be changed into a prime (401144443241) 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 in 7 ways as a sum of consecutive naturals, for example, 286492 + ... + 940407.

It is an arithmetic number, because the mean of its divisors is an integer number (50144016450).

Almost surely, 2^401144443242 is an apocalyptic number.

401144443242 is an abundant number, since it is smaller than the sum of its proper divisors (401159819958).

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

401144443242 is a wasteful number, since it uses less digits than its factorization.

401144443242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281397.

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

Adding to 401144443242 its reverse (242344441104), we get a palindrome (643488884346).

The spelling of 401144443242 in words is "four hundred one billion, one hundred forty-four million, four hundred forty-three thousand, two hundred forty-two".