654144044 has 24 divisors (see below), whose sum is σ = 1157184000. Its totient is φ = 323539920.

The previous prime is 654144031. The next prime is 654144047. The reversal of 654144044 is 440441456.

It is a self number, because there is not a number n which added to its sum of digits gives 654144044.

It is not an unprimeable number, because it can be changed into a prime (654144047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140189 + ... + 144779.

It is an arithmetic number, because the mean of its divisors is an integer number (48216000).

Almost surely, 2^654144044 is an apocalyptic number.

It is an amenable number.

654144044 is a deficient number, since it is larger than the sum of its proper divisors (503039956).

654144044 is a wasteful number, since it uses less digits than its factorization.

654144044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4973 (or 4971 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 654144044 is about 25576.2398330951. The cubic root of 654144044 is about 868.0760956739.

The spelling of 654144044 in words is "six hundred fifty-four million, one hundred forty-four thousand, forty-four".