402042234564436 has 12 divisors (see below), whose sum is σ = 710827249771828. Its totient is φ = 198948734629632.

The previous prime is 402042234564409. The next prime is 402042234564437. The reversal of 402042234564436 is 634465432240204.

It can be written as a sum of positive squares in 2 ways, for example, as 292754153203600 + 109288081360836 = 17110060^2 + 10454094^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 402042234564436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402042234564437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518095662711 + ... + 518095663486.

Almost surely, 2^{402042234564436} is an apocalyptic number.

It is an amenable number.

402042234564436 is a deficient number, since it is larger than the sum of its proper divisors (308785015207392).

402042234564436 is a wasteful number, since it uses less digits than its factorization.

402042234564436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036191326298 (or 1036191326296 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 49.

The spelling of 402042234564436 in words is "four hundred two trillion, forty-two billion, two hundred thirty-four million, five hundred sixty-four thousand, four hundred thirty-six".