384879645 has 12 divisors (see below), whose sum is σ = 667124796. Its totient is φ = 205269120.

The previous prime is 384879629. The next prime is 384879647. The reversal of 384879645 is 546978483.

384879645 is a `hidden beast` number, since 38 + 487 + 96 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52838361 + 332041284 = 7269^2 + 18222^2 .

It is not a de Polignac number, because 384879645 - 2⁴ = 384879629 is a prime.

It is a super-2 number, since 2×384879645² = 296264682270652050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 384879591 and 384879600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384879647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4276396 + ... + 4276485.

It is an arithmetic number, because the mean of its divisors is an integer number (55593733).

Almost surely, 2^384879645 is an apocalyptic number.

It is an amenable number.

384879645 is a deficient number, since it is larger than the sum of its proper divisors (282245151).

384879645 is a wasteful number, since it uses less digits than its factorization.

384879645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8552892 (or 8552889 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 384879645 is about 19618.3497012363. The cubic root of 384879645 is about 727.4028211854.

The spelling of 384879645 in words is "three hundred eighty-four million, eight hundred seventy-nine thousand, six hundred forty-five".