484640 has 48 divisors (see below), whose sum is σ = 1238328. Its totient is φ = 178176.

The previous prime is 484639. The next prime is 484643. The reversal of 484640 is 46484.

484640 is nontrivially palindromic in base 9.

It can be written as a sum of positive squares in 4 ways, for example, as 226576 + 258064 = 476^2 + 508^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (484643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964 + ... + 2196.

2⁴⁸⁴⁶⁴⁰ is an apocalyptic number.

484640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 484640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619164).

484640 is an abundant number, since it is smaller than the sum of its proper divisors (753688).

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

484640 is a wasteful number, since it uses less digits than its factorization.

484640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 484640 is about 696.1609009417. The cubic root of 484640 is about 78.5488356923.

The spelling of 484640 in words is "four hundred eighty-four thousand, six hundred forty".