549456816 has 40 divisors (see below), whose sum is σ = 1440624064. Its totient is φ = 180417600.

The previous prime is 549456799. The next prime is 549456833. The reversal of 549456816 is 618654945.

It is an interprime number because it is at equal distance from previous prime (549456799) and next prime (549456833).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 82210 + ... + 88641.

Almost surely, 2^549456816 is an apocalyptic number.

It is an amenable number.

549456816 is an abundant number, since it is smaller than the sum of its proper divisors (891167248).

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

549456816 is a wasteful number, since it uses less digits than its factorization.

549456816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170929 (or 170923 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 48.

The square root of 549456816 is about 23440.4952166118. The cubic root of 549456816 is about 819.0514592101.

The spelling of 549456816 in words is "five hundred forty-nine million, four hundred fifty-six thousand, eight hundred sixteen".