549899990 has 16 divisors (see below), whose sum is σ = 994146480. Its totient is φ = 218998560.

The previous prime is 549899951. The next prime is 549900011. The reversal of 549899990 is 99998945.

549899990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117776 + ... + 122355.

It is an arithmetic number, because the mean of its divisors is an integer number (62134155).

Almost surely, 2^549899990 is an apocalyptic number.

549899990 is a deficient number, since it is larger than the sum of its proper divisors (444246490).

549899990 is a wasteful number, since it uses less digits than its factorization.

549899990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240367.

The product of its (nonzero) digits is 9447840, while the sum is 62.

The square root of 549899990 is about 23449.9464818153. The cubic root of 549899990 is about 819.2716067901.

The spelling of 549899990 in words is "five hundred forty-nine million, eight hundred ninety-nine thousand, nine hundred ninety".