384572641 has 4 divisors (see below), whose sum is σ = 384716800. Its totient is φ = 384428484.

The previous prime is 384572621. The next prime is 384572651. The reversal of 384572641 is 146275483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146275483 = 10369 ⋅14107.

It is a cyclic number.

It is not a de Polignac number, because 384572641 - 2²⁵ = 351018209 is a prime.

It is a super-2 number, since 2×384572641² = 295792232411429762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 384572594 and 384572603.

It is not an unprimeable number, because it can be changed into a prime (384572621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68001 + ... + 73438.

It is an arithmetic number, because the mean of its divisors is an integer number (96179200).

Almost surely, 2^384572641 is an apocalyptic number.

It is an amenable number.

384572641 is a deficient number, since it is larger than the sum of its proper divisors (144159).

384572641 is a wasteful number, since it uses less digits than its factorization.

384572641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144158.

The product of its digits is 161280, while the sum is 40.

The square root of 384572641 is about 19610.5237308951. The cubic root of 384572641 is about 727.2093624581.

The spelling of 384572641 in words is "three hundred eighty-four million, five hundred seventy-two thousand, six hundred forty-one".