549494766 has 40 divisors (see below), whose sum is σ = 1257490080. Its totient is φ = 179265312.

The previous prime is 549494761. The next prime is 549494779. The reversal of 549494766 is 667494945.

It is a happy number.

549494766 is a `hidden beast` number, since 5 + 494 + 94 + 7 + 66 = 666.

549494766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×549494766² = 603888995722789512, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549494761) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28471 + ... + 43698.

It is an arithmetic number, because the mean of its divisors is an integer number (31437252).

Almost surely, 2^549494766 is an apocalyptic number.

549494766 is an abundant number, since it is smaller than the sum of its proper divisors (707995314).

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

549494766 is a wasteful number, since it uses less digits than its factorization.

549494766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72230 (or 72221 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 549494766 is about 23441.3046991843. The cubic root of 549494766 is about 819.0703155826.

The spelling of 549494766 in words is "five hundred forty-nine million, four hundred ninety-four thousand, seven hundred sixty-six".