549593144 has 16 divisors (see below), whose sum is σ = 1030763400. Its totient is φ = 274722912.

The previous prime is 549593087. The next prime is 549593171. The reversal of 549593144 is 441395945.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 549593095 and 549593104.

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, 34967 + ... + 48185.

Almost surely, 2^549593144 is an apocalyptic number.

It is an amenable number.

549593144 is a deficient number, since it is larger than the sum of its proper divisors (481170256).

549593144 is a wasteful number, since it uses less digits than its factorization.

549593144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18422 (or 18418 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The square root of 549593144 is about 23443.4029952991. The cubic root of 549593144 is about 819.1191930219.

The spelling of 549593144 in words is "five hundred forty-nine million, five hundred ninety-three thousand, one hundred forty-four".