402431200242 has 32 divisors (see below), whose sum is σ = 820568854080. Its totient is φ = 131529203520.

The previous prime is 402431200201. The next prime is 402431200267. The reversal of 402431200242 is 242002134204.

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, 101392 + ... + 902852.

It is an arithmetic number, because the mean of its divisors is an integer number (25642776690).

Almost surely, 2^402431200242 is an apocalyptic number.

402431200242 is an abundant number, since it is smaller than the sum of its proper divisors (418137653838).

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

402431200242 is a wasteful number, since it uses less digits than its factorization.

402431200242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803098.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 402431200242 its reverse (242002134204), we get a palindrome (644433334446).

The spelling of 402431200242 in words is "four hundred two billion, four hundred thirty-one million, two hundred thousand, two hundred forty-two".