402541540042 has 16 divisors (see below), whose sum is σ = 605949523200. Its totient is φ = 200559584160.

The previous prime is 402541540021. The next prime is 402541540087. The reversal of 402541540042 is 240045145204.

It is a junction number, because it is equal to n+sod(n) for n = 402541539986 and 402541540013.

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, 357934 + ... + 966022.

It is an arithmetic number, because the mean of its divisors is an integer number (37871845200).

Almost surely, 2^402541540042 is an apocalyptic number.

402541540042 is a deficient number, since it is larger than the sum of its proper divisors (203407983158).

402541540042 is a wasteful number, since it uses less digits than its factorization.

402541540042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609261.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 402541540042 its reverse (240045145204), we get a palindrome (642586685246).

The spelling of 402541540042 in words is "four hundred two billion, five hundred forty-one million, five hundred forty thousand, forty-two".