544644 has 45 divisors (see below), whose sum is σ = 1459381. Its totient is φ = 177120.

The previous prime is 544631. The next prime is 544651. The reversal of 544644 is 446445.

The square root of 544644 is 738.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 26244 + 518400 = 162^2 + 720^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is an unprimeable number.

544644 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 13264 + ... + 13304.

2⁵⁴⁴⁶⁴⁴ is an apocalyptic number.

544644 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

544644 is the 738-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 544644

544644 is an abundant number, since it is smaller than the sum of its proper divisors (914737).

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

544644 is a wasteful number, since it uses less digits than its factorization.

544644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 46 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The cubic root of 544644 is about 81.6653023975.

The spelling of 544644 in words is "five hundred forty-four thousand, six hundred forty-four".