573445428 has 48 divisors (see below), whose sum is σ = 1420078464. Its totient is φ = 179481600.

The previous prime is 573445427. The next prime is 573445451. The reversal of 573445428 is 824544375.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 573445428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (573445427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90153 + ... + 96303.

It is an arithmetic number, because the mean of its divisors is an integer number (29584968).

Almost surely, 2^573445428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 573445428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (710039232).

573445428 is an abundant number, since it is smaller than the sum of its proper divisors (846633036).

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

573445428 is a wasteful number, since it uses less digits than its factorization.

573445428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6632 (or 6630 counting only the distinct ones).

The product of its digits is 537600, while the sum is 42.

The square root of 573445428 is about 23946.7206105554. The cubic root of 573445428 is about 830.8016776475.

The spelling of 573445428 in words is "five hundred seventy-three million, four hundred forty-five thousand, four hundred twenty-eight".