549949680 has 240 divisors, whose sum is σ = 2222238720. Its totient is φ = 119066112.

The previous prime is 549949657. The next prime is 549949681. The reversal of 549949680 is 86949945.

549949680 is a `hidden beast` number, since 549 + 9 + 4 + 96 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-3 number, since 3×549949680³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549949681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92889 + ... + 98631.

It is an arithmetic number, because the mean of its divisors is an integer number (9259328).

Almost surely, 2^549949680 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 549949680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1111119360).

549949680 is an abundant number, since it is smaller than the sum of its proper divisors (1672289040).

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

549949680 is a wasteful number, since it uses less digits than its factorization.

549949680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5788 (or 5779 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 549949680 is about 23451.0059485729. The cubic root of 549949680 is about 819.2962830226.

The spelling of 549949680 in words is "five hundred forty-nine million, nine hundred forty-nine thousand, six hundred eighty".