549727644 has 12 divisors (see below), whose sum is σ = 1282697864. Its totient is φ = 183242544.

The previous prime is 549727639. The next prime is 549727667. The reversal of 549727644 is 446727945.

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

It is a junction number, because it is equal to n+sod(n) for n = 549727593 and 549727602.

It is a congruent number.

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, 22905307 + ... + 22905330.

Almost surely, 2^549727644 is an apocalyptic number.

It is an amenable number.

549727644 is an abundant number, since it is smaller than the sum of its proper divisors (732970220).

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

549727644 is a wasteful number, since it uses less digits than its factorization.

549727644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45810644 (or 45810642 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 48.

The square root of 549727644 is about 23446.2714306561. The cubic root of 549727644 is about 819.1860076263.

The spelling of 549727644 in words is "five hundred forty-nine million, seven hundred twenty-seven thousand, six hundred forty-four".