549309016 has 8 divisors (see below), whose sum is σ = 1029954420. Its totient is φ = 274654504.

The previous prime is 549309011. The next prime is 549309071. The reversal of 549309016 is 610903945.

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 (549309011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34331806 + ... + 34331821.

Almost surely, 2^549309016 is an apocalyptic number.

It is an amenable number.

549309016 is a deficient number, since it is larger than the sum of its proper divisors (480645404).

549309016 is a wasteful number, since it uses less digits than its factorization.

549309016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68663633 (or 68663629 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 549309016 is about 23437.3423408031. The cubic root of 549309016 is about 818.9780129396.

The spelling of 549309016 in words is "five hundred forty-nine million, three hundred nine thousand, sixteen".