489450 has 48 divisors (see below), whose sum is σ = 1312416. Its totient is φ = 120000.

The previous prime is 489449. The next prime is 489457. The reversal of 489450 is 54984.

489450 = 188² + 189² + ... + 200².

It is a super-2 number, since 2×489450² = 479122605000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (489457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1825 + ... + 2075.

It is an arithmetic number, because the mean of its divisors is an integer number (27342).

2⁴⁸⁹⁴⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656208).

489450 is an abundant number, since it is smaller than the sum of its proper divisors (822966).

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

489450 is a wasteful number, since it uses less digits than its factorization.

489450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 489450 is about 699.6070325547. The cubic root of 489450 is about 78.8078436196.

It can be divided in two parts, 489 and 450, that added together give a palindrome (939).

The spelling of 489450 in words is "four hundred eighty-nine thousand, four hundred fifty".