549451144 has 32 divisors (see below), whose sum is σ = 1139286240. Its totient is φ = 246326400.

The previous prime is 549451109. The next prime is 549451151. The reversal of 549451144 is 441154945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36342 + ... + 49189.

It is an arithmetic number, because the mean of its divisors is an integer number (35602695).

Almost surely, 2^549451144 is an apocalyptic number.

It is an amenable number.

549451144 is an abundant number, since it is smaller than the sum of its proper divisors (589835096).

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

549451144 is a wasteful number, since it uses less digits than its factorization.

549451144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85621 (or 85617 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 549451144 is about 23440.3742290946. The cubic root of 549451144 is about 819.0486408655.

The spelling of 549451144 in words is "five hundred forty-nine million, four hundred fifty-one thousand, one hundred forty-four".