609280 has 88 divisors (see below), whose sum is σ = 1768608. Its totient is φ = 196608.

The previous prime is 609277. The next prime is 609283. The reversal of 609280 is 82906.

It is an interprime number because it is at equal distance from previous prime (609277) and next prime (609283).

It is not an unprimeable number, because it can be changed into a prime (609283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35832 + ... + 35848.

2⁶⁰⁹²⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884304).

609280 is an abundant number, since it is smaller than the sum of its proper divisors (1159328).

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

609280 is a wasteful number, since it uses less digits than its factorization.

609280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 609280 is about 780.5638987296. The cubic root of 609280 is about 84.7758801700.

The spelling of 609280 in words is "six hundred nine thousand, two hundred eighty".