547445990 has 32 divisors (see below), whose sum is σ = 1212805440. Its totient is φ = 173257344.

The previous prime is 547445971. The next prime is 547446037. The reversal of 547445990 is 99544745.

It is a super-2 number, since 2×547445990² = 599394223934160200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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, 299885 + ... + 301704.

It is an arithmetic number, because the mean of its divisors is an integer number (37900170).

Almost surely, 2^547445990 is an apocalyptic number.

547445990 is an abundant number, since it is smaller than the sum of its proper divisors (665359450).

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

547445990 is a wasteful number, since it uses less digits than its factorization.

547445990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601616.

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 547445990 is about 23397.5637620672. The cubic root of 547445990 is about 818.0510874891.

The spelling of 547445990 in words is "five hundred forty-seven million, four hundred forty-five thousand, nine hundred ninety".