384955380 has 72 divisors (see below), whose sum is σ = 1192568832. Its totient is φ = 100468416.

The previous prime is 384955379. The next prime is 384955381. The reversal of 384955380 is 83559483.

It is a happy number.

384955380 is a `hidden beast` number, since 38 + 495 + 53 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (384955379) and next prime (384955381).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384955381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14292 + ... + 31211.

It is an arithmetic number, because the mean of its divisors is an integer number (16563456).

Almost surely, 2^384955380 is an apocalyptic number.

384955380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

384955380 is an abundant number, since it is smaller than the sum of its proper divisors (807613452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

384955380 is a wasteful number, since it uses less digits than its factorization.

384955380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45565 (or 45560 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 384955380 is about 19620.2798145184. The cubic root of 384955380 is about 727.4505298135.

The spelling of 384955380 in words is "three hundred eighty-four million, nine hundred fifty-five thousand, three hundred eighty".