385574109 has 16 divisors (see below), whose sum is σ = 519281280. Its totient is φ = 254471360.

The previous prime is 385574089. The next prime is 385574129. The reversal of 385574109 is 901475583.

It is an interprime number because it is at equal distance from previous prime (385574089) and next prime (385574129).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385574109 is a prime.

It is a super-2 number, since 2×385574109² = 297334787062287762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385574129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133339 + ... + 136199.

It is an arithmetic number, because the mean of its divisors is an integer number (32455080).

Almost surely, 2^385574109 is an apocalyptic number.

It is an amenable number.

385574109 is a deficient number, since it is larger than the sum of its proper divisors (133707171).

385574109 is a wasteful number, since it uses less digits than its factorization.

385574109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 385574109 is about 19636.0410724769. The cubic root of 385574109 is about 727.8400587784.

The spelling of 385574109 in words is "three hundred eighty-five million, five hundred seventy-four thousand, one hundred nine".