429829866 has 12 divisors (see below), whose sum is σ = 931298082. Its totient is φ = 143276616.

The previous prime is 429829847. The next prime is 429829867. The reversal of 429829866 is 668928924.

It is a happy number.

429829866 is a `hidden beast` number, since 4 + 298 + 298 + 66 = 666.

It can be written as a sum of positive squares in only one way, i.e., 358004241 + 71825625 = 18921^2 + 8475^2 .

It is not an unprimeable number, because it can be changed into a prime (429829867) 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, 11939701 + ... + 11939736.

Almost surely, 2^429829866 is an apocalyptic number.

429829866 is an abundant number, since it is smaller than the sum of its proper divisors (501468216).

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

429829866 is a wasteful number, since it uses less digits than its factorization.

429829866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23879445 (or 23879442 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 429829866 is about 20732.3386524531. The cubic root of 429829866 is about 754.6846722037.

The spelling of 429829866 in words is "four hundred twenty-nine million, eight hundred twenty-nine thousand, eight hundred sixty-six".