402420004242 has 16 divisors (see below), whose sum is σ = 818481365280. Its totient is φ = 131866441952.

The previous prime is 402420004219. The next prime is 402420004279. The reversal of 402420004242 is 242400024204.

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, 568389483 + ... + 568390190.

It is an arithmetic number, because the mean of its divisors is an integer number (51155085330).

Almost surely, 2^402420004242 is an apocalyptic number.

402420004242 is an abundant number, since it is smaller than the sum of its proper divisors (416061361038).

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

402420004242 is a wasteful number, since it uses less digits than its factorization.

402420004242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136779737.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 402420004242 its reverse (242400024204), we get a palindrome (644820028446).

The spelling of 402420004242 in words is "four hundred two billion, four hundred twenty million, four thousand, two hundred forty-two".