384920001 has 12 divisors (see below), whose sum is σ = 588701412. Its totient is φ = 241518336.

The previous prime is 384919957. The next prime is 384920023. The reversal of 384920001 is 100029483.

It can be written as a sum of positive squares in 2 ways, for example, as 337640625 + 47279376 = 18375^2 + 6876^2 .

It is not a de Polignac number, because 384920001 - 2⁶ = 384919937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (384920101) 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, 1257756 + ... + 1258061.

It is an arithmetic number, because the mean of its divisors is an integer number (49058451).

Almost surely, 2^384920001 is an apocalyptic number.

It is an amenable number.

384920001 is a deficient number, since it is larger than the sum of its proper divisors (203781411).

384920001 is a wasteful number, since it uses less digits than its factorization.

384920001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515840 (or 2515837 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 384920001 is about 19619.3782011561. The cubic root of 384920001 is about 727.4282438880.

Adding to 384920001 its reverse (100029483), we get a palindrome (484949484).

The spelling of 384920001 in words is "three hundred eighty-four million, nine hundred twenty thousand, one".