402142443124 has 12 divisors (see below), whose sum is σ = 703767544704. Its totient is φ = 201066001784.

The previous prime is 402142443107. The next prime is 402142443137. The reversal of 402142443124 is 421344241204.

It is a happy number.

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, 1128964 + ... + 1441819.

It is an arithmetic number, because the mean of its divisors is an integer number (58647295392).

Almost surely, 2^402142443124 is an apocalyptic number.

It is an amenable number.

402142443124 is a deficient number, since it is larger than the sum of its proper divisors (301625101580).

402142443124 is a wasteful number, since it uses less digits than its factorization.

402142443124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609894 (or 2609892 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 402142443124 its reverse (421344241204), we get a palindrome (823486684328).

The spelling of 402142443124 in words is "four hundred two billion, one hundred forty-two million, four hundred forty-three thousand, one hundred twenty-four".