549944392 has 16 divisors (see below), whose sum is σ = 1031448960. Its totient is φ = 274891344.

The previous prime is 549944383. The next prime is 549944393. The reversal of 549944392 is 293449945.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (549944393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26673 + ... + 42559.

It is an arithmetic number, because the mean of its divisors is an integer number (64465560).

Almost surely, 2^549944392 is an apocalyptic number.

It is an amenable number.

549944392 is a deficient number, since it is larger than the sum of its proper divisors (481504568).

549944392 is a wasteful number, since it uses less digits than its factorization.

549944392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20220 (or 20216 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 49.

The square root of 549944392 is about 23450.8932026053. The cubic root of 549944392 is about 819.2936570535.

The spelling of 549944392 in words is "five hundred forty-nine million, nine hundred forty-four thousand, three hundred ninety-two".