385974369 has 64 divisors (see below), whose sum is σ = 661651200. Its totient is φ = 220147200.

The previous prime is 385974367. The next prime is 385974403. The reversal of 385974369 is 963479583.

385974369 is a `hidden beast` number, since 3 + 8 + 597 + 43 + 6 + 9 = 666.

It is not a de Polignac number, because 385974369 - 2¹ = 385974367 is a prime.

It is a super-2 number, since 2×385974369² = 297952427049896322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (385974367) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 352587 + ... + 353679.

It is an arithmetic number, because the mean of its divisors is an integer number (10338300).

Almost surely, 2^385974369 is an apocalyptic number.

It is an amenable number.

385974369 is a deficient number, since it is larger than the sum of its proper divisors (275676831).

385974369 is a wasteful number, since it uses less digits than its factorization.

385974369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183 (or 1177 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 385974369 is about 19646.2304017845. The cubic root of 385974369 is about 728.0918257808.

The spelling of 385974369 in words is "three hundred eighty-five million, nine hundred seventy-four thousand, three hundred sixty-nine".