204214387 has 16 divisors (see below), whose sum is σ = 234329760. Its totient is φ = 176297472.

The previous prime is 204214369. The next prime is 204214393. The reversal of 204214387 is 783412402.

It is a de Polignac number, because none of the positive numbers 2^k-204214387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204214357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33189 + ... + 38857.

It is an arithmetic number, because the mean of its divisors is an integer number (14645610).

Almost surely, 2^204214387 is an apocalyptic number.

204214387 is a deficient number, since it is larger than the sum of its proper divisors (30115373).

204214387 is a wasteful number, since it uses less digits than its factorization.

204214387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 204214387 is about 14290.3599324860. The cubic root of 204214387 is about 588.8826761511.

Adding to 204214387 its reverse (783412402), we get a palindrome (987626789).

The spelling of 204214387 in words is "two hundred four million, two hundred fourteen thousand, three hundred eighty-seven".