402424312142 has 8 divisors (see below), whose sum is σ = 603644181096. Its totient is φ = 201209585112.

The previous prime is 402424312133. The next prime is 402424312181. The reversal of 402424312142 is 241213424204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083473 + ... + 1406684.

It is an arithmetic number, because the mean of its divisors is an integer number (75455522637).

Almost surely, 2^402424312142 is an apocalyptic number.

402424312142 is a deficient number, since it is larger than the sum of its proper divisors (201219868954).

402424312142 is a wasteful number, since it uses less digits than its factorization.

402424312142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570962.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 402424312142 its reverse (241213424204), we get a palindrome (643637736346).

The spelling of 402424312142 in words is "four hundred two billion, four hundred twenty-four million, three hundred twelve thousand, one hundred forty-two".