381500204 has 24 divisors (see below), whose sum is σ = 681715440. Its totient is φ = 186765824.

The previous prime is 381500177. The next prime is 381500209. The reversal of 381500204 is 402005183.

It is a self number, because there is not a number n which added to its sum of digits gives 381500204.

It is not an unprimeable number, because it can be changed into a prime (381500209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32432 + ... + 42600.

It is an arithmetic number, because the mean of its divisors is an integer number (28404810).

Almost surely, 2^381500204 is an apocalyptic number.

It is an amenable number.

381500204 is a deficient number, since it is larger than the sum of its proper divisors (300215236).

381500204 is a wasteful number, since it uses less digits than its factorization.

381500204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10369 (or 10367 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 381500204 is about 19532.0302068167. The cubic root of 381500204 is about 725.2675692527.

Adding to 381500204 its reverse (402005183), we get a palindrome (783505387).

The spelling of 381500204 in words is "three hundred eighty-one million, five hundred thousand, two hundred four".