384202645 has 4 divisors (see below), whose sum is σ = 461043180. Its totient is φ = 307362112.

The previous prime is 384202639. The next prime is 384202673. The reversal of 384202645 is 546202483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546202483 = 439 ⋅1244197.

It can be written as a sum of positive squares in 2 ways, for example, as 282475249 + 101727396 = 16807^2 + 10086^2 .

It is a cyclic number.

It is not a de Polignac number, because 384202645 - 2¹⁷ = 384071573 is a prime.

It is a super-2 number, since 2×384202645² = 295223344849992050, 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 384202645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38420260 + ... + 38420269.

It is an arithmetic number, because the mean of its divisors is an integer number (115260795).

Almost surely, 2^384202645 is an apocalyptic number.

It is an amenable number.

384202645 is a deficient number, since it is larger than the sum of its proper divisors (76840535).

384202645 is an equidigital number, since it uses as much as digits as its factorization.

384202645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76840534.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 384202645 is about 19601.0878524637. The cubic root of 384202645 is about 726.9760724270.

The spelling of 384202645 in words is "three hundred eighty-four million, two hundred two thousand, six hundred forty-five".