401204334042 has 48 divisors (see below), whose sum is σ = 890607489408. Its totient is φ = 130453968960.

The previous prime is 401204333977. The next prime is 401204334049. The reversal of 401204334042 is 240433402104.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 401204333997 and 401204334015.

It is not an unprimeable number, because it can be changed into a prime (401204334049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5575263 + ... + 5646765.

It is an arithmetic number, because the mean of its divisors is an integer number (18554322696).

Almost surely, 2^401204334042 is an apocalyptic number.

401204334042 is an abundant number, since it is smaller than the sum of its proper divisors (489403155366).

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

401204334042 is a wasteful number, since it uses less digits than its factorization.

401204334042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79155 (or 79152 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 401204334042 its reverse (240433402104), we get a palindrome (641637736146).

The spelling of 401204334042 in words is "four hundred one billion, two hundred four million, three hundred thirty-four thousand, forty-two".