402424204242 has 32 divisors (see below), whose sum is σ = 848311289280. Its totient is φ = 127072137920.

The previous prime is 402424204223. The next prime is 402424204261. The reversal of 402424204242 is 242402424204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (402424204223) and next prime (402424204261).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21809484 + ... + 21827927.

It is an arithmetic number, because the mean of its divisors is an integer number (26509727790).

Almost surely, 2^402424204242 is an apocalyptic number.

402424204242 is an abundant number, since it is smaller than the sum of its proper divisors (445887085038).

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

402424204242 is a wasteful number, since it uses less digits than its factorization.

402424204242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43637498.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 402424204242 its reverse (242402424204), we get a palindrome (644826628446).

The spelling of 402424204242 in words is "four hundred two billion, four hundred twenty-four million, two hundred four thousand, two hundred forty-two".