544268664 has 24 divisors (see below), whose sum is σ = 1474061160. Its totient is φ = 181422864.

The previous prime is 544268663. The next prime is 544268677. The reversal of 544268664 is 466862445.

544268664 is a `hidden beast` number, since 544 + 26 + 86 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×544268664² = 592456757224689792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544268663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3779572 + ... + 3779715.

It is an arithmetic number, because the mean of its divisors is an integer number (61419215).

Almost surely, 2^544268664 is an apocalyptic number.

It is an amenable number.

544268664 is an abundant number, since it is smaller than the sum of its proper divisors (929792496).

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

544268664 is a wasteful number, since it uses less digits than its factorization.

544268664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7559299 (or 7559292 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 544268664 is about 23329.5663054417. The cubic root of 544268664 is about 816.4653847599.

The spelling of 544268664 in words is "five hundred forty-four million, two hundred sixty-eight thousand, six hundred sixty-four".