384629866 has 8 divisors (see below), whose sum is σ = 577396260. Its totient is φ = 192164448.

The previous prime is 384629857. The next prime is 384629867. The reversal of 384629866 is 668926483.

It can be written as a sum of positive squares in 2 ways, for example, as 375235641 + 9394225 = 19371^2 + 3065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (384629867) 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, 72021 + ... + 77176.

Almost surely, 2^384629866 is an apocalyptic number.

384629866 is a deficient number, since it is larger than the sum of its proper divisors (192766394).

384629866 is a wasteful number, since it uses less digits than its factorization.

384629866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150488.

The product of its digits is 2985984, while the sum is 52.

The square root of 384629866 is about 19611.9827146569. The cubic root of 384629866 is about 727.2454306261.

The spelling of 384629866 in words is "three hundred eighty-four million, six hundred twenty-nine thousand, eight hundred sixty-six".