543820990 has 32 divisors (see below), whose sum is σ = 1049604480. Its totient is φ = 202136064.

The previous prime is 543820987. The next prime is 543820997. The reversal of 543820990 is 99028345.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543820997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6817 + ... + 33676.

It is an arithmetic number, because the mean of its divisors is an integer number (32800140).

Almost surely, 2^543820990 is an apocalyptic number.

543820990 is a deficient number, since it is larger than the sum of its proper divisors (505783490).

543820990 is a wasteful number, since it uses less digits than its factorization.

543820990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40596.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 543820990 is about 23319.9697684195. The cubic root of 543820990 is about 816.2414692513.

The spelling of 543820990 in words is "five hundred forty-three million, eight hundred twenty thousand, nine hundred ninety".