554440 has 32 divisors (see below), whose sum is σ = 1270080. Its totient is φ = 217792.

The previous prime is 554431. The next prime is 554447. The reversal of 554440 is 44455.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (554447) 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, 3237 + ... + 3403.

It is an arithmetic number, because the mean of its divisors is an integer number (39690).

2⁵⁵⁴⁴⁴⁰ 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 554440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635040).

554440 is an abundant number, since it is smaller than the sum of its proper divisors (715640).

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

554440 is a wasteful number, since it uses less digits than its factorization.

554440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 554440 is about 744.6072790404. The cubic root of 554440 is about 82.1520083422.

Adding to 554440 its reverse (44455), we get a palindrome (598895).

It can be divided in two parts, 5 and 54440, that added together give a palindrome (54445).

The spelling of 554440 in words is "five hundred fifty-four thousand, four hundred forty".