402402042424 has 16 divisors (see below), whose sum is σ = 758672361720. Its totient is φ = 200089412640.

The previous prime is 402402042353. The next prime is 402402042431. The reversal of 402402042424 is 424240204204.

It is a junction number, because it is equal to n+sod(n) for n = 402402042392 and 402402042401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138949534 + ... + 138952429.

Almost surely, 2^402402042424 is an apocalyptic number.

It is an amenable number.

402402042424 is a deficient number, since it is larger than the sum of its proper divisors (356270319296).

402402042424 is a wasteful number, since it uses less digits than its factorization.

402402042424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277902150 (or 277902146 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 402402042424 its reverse (424240204204), we get a palindrome (826642246628).

The spelling of 402402042424 in words is "four hundred two billion, four hundred two million, forty-two thousand, four hundred twenty-four".