549523416 has 64 divisors (see below), whose sum is σ = 1486195200. Its totient is φ = 168317568.

The previous prime is 549523411. The next prime is 549523417. The reversal of 549523416 is 614325945.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549523411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66945 + ... + 74703.

It is an arithmetic number, because the mean of its divisors is an integer number (23221800).

Almost surely, 2^549523416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549523416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743097600).

549523416 is an abundant number, since it is smaller than the sum of its proper divisors (936671784).

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

549523416 is a wasteful number, since it uses less digits than its factorization.

549523416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008 (or 8004 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 549523416 is about 23441.9157920167. The cubic root of 549523416 is about 819.0845504508.

The spelling of 549523416 in words is "five hundred forty-nine million, five hundred twenty-three thousand, four hundred sixteen".