402168534 has 16 divisors (see below), whose sum is σ = 815356272. Its totient is φ = 132219648.

The previous prime is 402168527. The next prime is 402168553. The reversal of 402168534 is 435861204.

It is a junction number, because it is equal to n+sod(n) for n = 402168495 and 402168504.

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, 458659 + ... + 459534.

It is an arithmetic number, because the mean of its divisors is an integer number (50959767).

Almost surely, 2^402168534 is an apocalyptic number.

402168534 is an abundant number, since it is smaller than the sum of its proper divisors (413187738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402168534 is a wasteful number, since it uses less digits than its factorization.

402168534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918271.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 402168534 is about 20054.1400713169. The cubic root of 402168534 is about 738.1353920559.

The spelling of 402168534 in words is "four hundred two million, one hundred sixty-eight thousand, five hundred thirty-four".