544533636 has 12 divisors (see below), whose sum is σ = 1270578512. Its totient is φ = 181511208.

The previous prime is 544533623. The next prime is 544533637. The reversal of 544533636 is 636335445.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×544533636⁴ (a number of 36 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 544533594 and 544533603.

It is not an unprimeable number, because it can be changed into a prime (544533637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22688890 + ... + 22688913.

Almost surely, 2^544533636 is an apocalyptic number.

It is an amenable number.

544533636 is an abundant number, since it is smaller than the sum of its proper divisors (726044876).

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

544533636 is a wasteful number, since it uses less digits than its factorization.

544533636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45377810 (or 45377808 counting only the distinct ones).

The product of its digits is 388800, while the sum is 39.

The square root of 544533636 is about 23335.2445026831. The cubic root of 544533636 is about 816.5978593887.

The spelling of 544533636 in words is "five hundred forty-four million, five hundred thirty-three thousand, six hundred thirty-six".