400444441342 has 16 divisors (see below), whose sum is σ = 655680034800. Its totient is φ = 181907058240.

The previous prime is 400444441337. The next prime is 400444441363. The reversal of 400444441342 is 243144444004.

It is a junction number, because it is equal to n+sod(n) for n = 400444441298 and 400444441307.

It is a congruent number.

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, 5620917 + ... + 5691712.

It is an arithmetic number, because the mean of its divisors is an integer number (40980002175).

Almost surely, 2^400444441342 is an apocalyptic number.

400444441342 is a deficient number, since it is larger than the sum of its proper divisors (255235593458).

400444441342 is a wasteful number, since it uses less digits than its factorization.

400444441342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11314251.

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 400444441342 its reverse (243144444004), we get a palindrome (643588885346).

The spelling of 400444441342 in words is "four hundred billion, four hundred forty-four million, four hundred forty-one thousand, three hundred forty-two".