400101442342 has 24 divisors (see below), whose sum is σ = 698263449264. Its totient is φ = 171440790192.

The previous prime is 400101442339. The next prime is 400101442343. The reversal of 400101442342 is 243244101004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400101442343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172308 + ... + 910984.

It is an arithmetic number, because the mean of its divisors is an integer number (29094310386).

Almost surely, 2^400101442342 is an apocalyptic number.

400101442342 is a deficient number, since it is larger than the sum of its proper divisors (298162006922).

400101442342 is a wasteful number, since it uses less digits than its factorization.

400101442342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744220 (or 744213 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 400101442342 its reverse (243244101004), we get a palindrome (643345543346).

The spelling of 400101442342 in words is "four hundred billion, one hundred one million, four hundred forty-two thousand, three hundred forty-two".