544216840 has 16 divisors (see below), whose sum is σ = 1224487980. Its totient is φ = 217686720.

The previous prime is 544216819. The next prime is 544216853. The reversal of 544216840 is 48612445.

It can be written as a sum of positive squares in 2 ways, for example, as 522853956 + 21362884 = 22866^2 + 4622^2 .

It is a junction number, because it is equal to n+sod(n) for n = 544216796 and 544216805.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6802671 + ... + 6802750.

Almost surely, 2^544216840 is an apocalyptic number.

It is an amenable number.

544216840 is an abundant number, since it is smaller than the sum of its proper divisors (680271140).

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

544216840 is a wasteful number, since it uses less digits than its factorization.

544216840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13605432 (or 13605428 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 544216840 is about 23328.4555854004. The cubic root of 544216840 is about 816.4394699572.

The spelling of 544216840 in words is "five hundred forty-four million, two hundred sixteen thousand, eight hundred forty".