549438424 has 8 divisors (see below), whose sum is σ = 1030197060. Its totient is φ = 274719208.

The previous prime is 549438401. The next prime is 549438427. The reversal of 549438424 is 424834945.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549438427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34339894 + ... + 34339909.

Almost surely, 2^549438424 is an apocalyptic number.

It is an amenable number.

549438424 is a deficient number, since it is larger than the sum of its proper divisors (480758636).

549438424 is a wasteful number, since it uses less digits than its factorization.

549438424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68679809 (or 68679805 counting only the distinct ones).

The product of its digits is 552960, while the sum is 43.

The square root of 549438424 is about 23440.1029007980. The cubic root of 549438424 is about 819.0423203890.

The spelling of 549438424 in words is "five hundred forty-nine million, four hundred thirty-eight thousand, four hundred twenty-four".