384480081 has 16 divisors (see below), whose sum is σ = 569910720. Its totient is φ = 256180320.

The previous prime is 384480079. The next prime is 384480091. The reversal of 384480081 is 180084483.

It is not a de Polignac number, because 384480081 - 2¹ = 384480079 is a prime.

It is a super-2 number, since 2×384480081² = 295649865371533122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (384480091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77821 + ... + 82613.

It is an arithmetic number, because the mean of its divisors is an integer number (35619420).

Almost surely, 2^384480081 is an apocalyptic number.

It is an amenable number.

384480081 is a deficient number, since it is larger than the sum of its proper divisors (185430639).

384480081 is a wasteful number, since it uses less digits than its factorization.

384480081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7773 (or 7767 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 384480081 is about 19608.1636315082. The cubic root of 384480081 is about 727.1510155276.

The spelling of 384480081 in words is "three hundred eighty-four million, four hundred eighty thousand, eighty-one".