549040492 has 144 divisors (see below), whose sum is σ = 1383540480. Its totient is φ = 186883200.

The previous prime is 549040477. The next prime is 549040523. The reversal of 549040492 is 294040945.

It is a happy 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, 532017 + ... + 533047.

It is an arithmetic number, because the mean of its divisors is an integer number (9607920).

Almost surely, 2^549040492 is an apocalyptic number.

549040492 is a gapful number since it is divisible by the number (52) 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 549040492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691770240).

549040492 is an abundant number, since it is smaller than the sum of its proper divisors (834499988).

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

549040492 is a wasteful number, since it uses less digits than its factorization.

549040492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1083 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 549040492 is about 23431.6130900115. The cubic root of 549040492 is about 818.8445415603.

The spelling of 549040492 in words is "five hundred forty-nine million, forty thousand, four hundred ninety-two".