402866343 has 24 divisors (see below), whose sum is σ = 635596416. Its totient is φ = 243862800.

The previous prime is 402866333. The next prime is 402866363. The reversal of 402866343 is 343668204.

It is a happy number.

It is not a de Polignac number, because 402866343 - 2⁴ = 402866327 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 402866298 and 402866307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402866333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100096 + ... + 104042.

It is an arithmetic number, because the mean of its divisors is an integer number (26483184).

Almost surely, 2^402866343 is an apocalyptic number.

402866343 is a deficient number, since it is larger than the sum of its proper divisors (232730073).

402866343 is a wasteful number, since it uses less digits than its factorization.

402866343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4995 (or 4992 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 402866343 is about 20071.5306591201. The cubic root of 402866343 is about 738.5620621844.

The spelling of 402866343 in words is "four hundred two million, eight hundred sixty-six thousand, three hundred forty-three".