204616489 has 32 divisors (see below), whose sum is σ = 270167040. Its totient is φ = 150292800.

The previous prime is 204616483. The next prime is 204616499. The reversal of 204616489 is 984616402.

It is not a de Polignac number, because 204616489 - 2³ = 204616481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204616481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94954 + ... + 97084.

It is an arithmetic number, because the mean of its divisors is an integer number (8442720).

Almost surely, 2^204616489 is an apocalyptic number.

204616489 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

204616489 is a deficient number, since it is larger than the sum of its proper divisors (65550551).

204616489 is a wasteful number, since it uses less digits than its factorization.

204616489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 204616489 is about 14304.4220085958. The cubic root of 204616489 is about 589.2689298000.

The spelling of 204616489 in words is "two hundred four million, six hundred sixteen thousand, four hundred eighty-nine".