385407069 has 8 divisors (see below), whose sum is σ = 514179552. Its totient is φ = 256786320.

The previous prime is 385407053. The next prime is 385407073. The reversal of 385407069 is 960704583.

It is a happy number.

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

It is not a de Polignac number, because 385407069 - 2⁴ = 385407053 is a prime.

It is a super-2 number, since 2×385407069² = 297077217670341522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 385407069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385407079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31867 + ... + 42264.

It is an arithmetic number, because the mean of its divisors is an integer number (64272444).

Almost surely, 2^385407069 is an apocalyptic number.

It is an amenable number.

385407069 is a deficient number, since it is larger than the sum of its proper divisors (128772483).

385407069 is a wasteful number, since it uses less digits than its factorization.

385407069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75867.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 385407069 is about 19631.7872085045. The cubic root of 385407069 is about 727.7349376428.

The spelling of 385407069 in words is "three hundred eighty-five million, four hundred seven thousand, sixty-nine".