544248864 has 36 divisors (see below), whose sum is σ = 1547708526. Its totient is φ = 181416192.

The previous prime is 544248853. The next prime is 544248869. The reversal of 544248864 is 468842445.

544248864 is a `hidden beast` number, since 544 + 2 + 48 + 8 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 299013264 + 245235600 = 17292^2 + 15660^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (544248869) 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, 944589 + ... + 945164.

Almost surely, 2^544248864 is an apocalyptic number.

It is an amenable number.

544248864 is an abundant number, since it is smaller than the sum of its proper divisors (1003459662).

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

544248864 is a wasteful number, since it uses less digits than its factorization.

544248864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889769 (or 1889758 counting only the distinct ones).

The product of its digits is 983040, while the sum is 45.

The square root of 544248864 is about 23329.1419473585. The cubic root of 544248864 is about 816.4554838833.

The spelling of 544248864 in words is "five hundred forty-four million, two hundred forty-eight thousand, eight hundred sixty-four".