384210069 has 4 divisors (see below), whose sum is σ = 512280096. Its totient is φ = 256140044.

The previous prime is 384210041. The next prime is 384210089. The reversal of 384210069 is 960012483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 384210069 - 2¹³ = 384201877 is a prime.

It is a super-2 number, since 2×384210069² = 295234754241969522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384210089) 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, 64035009 + ... + 64035014.

It is an arithmetic number, because the mean of its divisors is an integer number (128070024).

Almost surely, 2^384210069 is an apocalyptic number.

It is an amenable number.

384210069 is a deficient number, since it is larger than the sum of its proper divisors (128070027).

384210069 is a wasteful number, since it uses less digits than its factorization.

384210069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128070026.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 384210069 is about 19601.2772287930. The cubic root of 384210069 is about 726.9807548827.

The spelling of 384210069 in words is "three hundred eighty-four million, two hundred ten thousand, sixty-nine".