400401002423042 has 8 divisors (see below), whose sum is σ = 606214601799696. Its totient is φ = 198329468489812.

The previous prime is 400401002423021. The next prime is 400401002423047. The reversal of 400401002423042 is 240324200104004.

It is a happy number.

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 (400401002423047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935516360588 + ... + 935516361015.

It is an arithmetic number, because the mean of its divisors is an integer number (75776825224962).

Almost surely, 2^{400401002423042} is an apocalyptic number.

400401002423042 is a deficient number, since it is larger than the sum of its proper divisors (205813599376654).

400401002423042 is a wasteful number, since it uses less digits than its factorization.

400401002423042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871032721712.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 400401002423042 its reverse (240324200104004), we get a palindrome (640725202527046).

The spelling of 400401002423042 in words is "four hundred trillion, four hundred one billion, two million, four hundred twenty-three thousand, forty-two".