402116834 has 12 divisors (see below), whose sum is σ = 701653014. Its totient is φ = 172335744.

The previous prime is 402116831. The next prime is 402116839. The reversal of 402116834 is 438611204.

It can be written as a sum of positive squares in only one way, i.e., 380055025 + 22061809 = 19495^2 + 4697^2 .

It is a junction number, because it is equal to n+sod(n) for n = 402116797 and 402116806.

It is not an unprimeable number, because it can be changed into a prime (402116831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2051519 + ... + 2051714.

Almost surely, 2^402116834 is an apocalyptic number.

402116834 is a deficient number, since it is larger than the sum of its proper divisors (299536180).

402116834 is a wasteful number, since it uses less digits than its factorization.

402116834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103249 (or 4103242 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 402116834 is about 20052.8510192441. The cubic root of 402116834 is about 738.1037608433.

The spelling of 402116834 in words is "four hundred two million, one hundred sixteen thousand, eight hundred thirty-four".