402042420142 has 16 divisors (see below), whose sum is σ = 696586867632. Its totient is φ = 171996757120.

The previous prime is 402042420133. The next prime is 402042420187. The reversal of 402042420142 is 241024240204.

It is a congruent number.

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, 537489493 + ... + 537490240.

It is an arithmetic number, because the mean of its divisors is an integer number (43536679227).

Almost surely, 2^402042420142 is an apocalyptic number.

402042420142 is a deficient number, since it is larger than the sum of its proper divisors (294544447490).

402042420142 is a wasteful number, since it uses less digits than its factorization.

402042420142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074979763.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 402042420142 its reverse (241024240204), we get a palindrome (643066660346).

The spelling of 402042420142 in words is "four hundred two billion, forty-two million, four hundred twenty thousand, one hundred forty-two".