549945430 has 16 divisors (see below), whose sum is σ = 1016656560. Its totient is φ = 214032672.

The previous prime is 549945421. The next prime is 549945457. The reversal of 549945430 is 34549945.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742800 + ... + 743539.

It is an arithmetic number, because the mean of its divisors is an integer number (63541035).

Almost surely, 2^549945430 is an apocalyptic number.

549945430 is a deficient number, since it is larger than the sum of its proper divisors (466711130).

549945430 is a wasteful number, since it uses less digits than its factorization.

549945430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486383.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 549945430 is about 23450.9153339481. The cubic root of 549945430 is about 819.2941725155.

The spelling of 549945430 in words is "five hundred forty-nine million, nine hundred forty-five thousand, four hundred thirty".