549669456 has 240 divisors, whose sum is σ = 1916841600. Its totient is φ = 150087168.

The previous prime is 549669431. The next prime is 549669467. The reversal of 549669456 is 654966945.

549669456 is a `hidden beast` number, since 549 + 6 + 6 + 94 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 486300 + ... + 487428.

It is an arithmetic number, because the mean of its divisors is an integer number (7986840).

Almost surely, 2^549669456 is an apocalyptic number.

549669456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549669456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (958420800).

549669456 is an abundant number, since it is smaller than the sum of its proper divisors (1367172144).

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

549669456 is a wasteful number, since it uses less digits than its factorization.

549669456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1164 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The square root of 549669456 is about 23445.0305182143. The cubic root of 549669456 is about 819.1571033268.

The spelling of 549669456 in words is "five hundred forty-nine million, six hundred sixty-nine thousand, four hundred fifty-six".