549798020 has 48 divisors (see below), whose sum is σ = 1261951488. Its totient is φ = 200302080.

The previous prime is 549798019. The next prime is 549798031. The reversal of 549798020 is 20897945.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15542 + ... + 36621.

It is an arithmetic number, because the mean of its divisors is an integer number (26290656).

Almost surely, 2^549798020 is an apocalyptic number.

It is an amenable number.

549798020 is an abundant number, since it is smaller than the sum of its proper divisors (712153468).

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

549798020 is a wasteful number, since it uses less digits than its factorization.

549798020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52220 (or 52218 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 549798020 is about 23447.7721756247. The cubic root of 549798020 is about 819.2209634661.

The spelling of 549798020 in words is "five hundred forty-nine million, seven hundred ninety-eight thousand, twenty".