402430430442 has 16 divisors (see below), whose sum is σ = 807399857952. Its totient is φ = 133720310640.

The previous prime is 402430430419. The next prime is 402430430447. The reversal of 402430430442 is 244034034204.

It is not an unprimeable number, because it can be changed into a prime (402430430447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105789484 + ... + 105793287.

It is an arithmetic number, because the mean of its divisors is an integer number (50462491122).

Almost surely, 2^402430430442 is an apocalyptic number.

402430430442 is an abundant number, since it is smaller than the sum of its proper divisors (404969427510).

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

402430430442 is a wasteful number, since it uses less digits than its factorization.

402430430442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211583093.

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 402430430442 its reverse (244034034204), we get a palindrome (646464464646).

The spelling of 402430430442 in words is "four hundred two billion, four hundred thirty million, four hundred thirty thousand, four hundred forty-two".