384940100 has 18 divisors (see below), whose sum is σ = 835320234. Its totient is φ = 153976000.

The previous prime is 384940099. The next prime is 384940109. The reversal of 384940100 is 1049483.

It can be written as a sum of positive squares in 3 ways, for example, as 2033476 + 382906624 = 1426^2 + 19568^2 .

It is not an unprimeable number, because it can be changed into a prime (384940109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1924601 + ... + 1924800.

Almost surely, 2^384940100 is an apocalyptic number.

It is an amenable number.

384940100 is an abundant number, since it is smaller than the sum of its proper divisors (450380134).

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

384940100 is a wasteful number, since it uses less digits than its factorization.

384940100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849415 (or 3849408 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 384940100 is about 19619.8904176349. The cubic root of 384940100 is about 727.4409048096.

Adding to 384940100 its reverse (1049483), we get a palindrome (385989583).

The spelling of 384940100 in words is "three hundred eighty-four million, nine hundred forty thousand, one hundred".