573664140 has 192 divisors, whose sum is σ = 2083737600. Its totient is φ = 128293632.

The previous prime is 573664127. The next prime is 573664141. The reversal of 573664140 is 41466375.

It is a happy number.

573664140 is a `hidden beast` number, since 5 + 7 + 3 + 6 + 641 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 573664095 and 573664104.

It is not an unprimeable number, because it can be changed into a prime (573664141) 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 63 ways as a sum of consecutive naturals, for example, 176046 + ... + 179274.

It is an arithmetic number, because the mean of its divisors is an integer number (10852800).

Almost surely, 2^573664140 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 573664140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1041868800).

573664140 is an abundant number, since it is smaller than the sum of its proper divisors (1510073460).

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

573664140 is a wasteful number, since it uses less digits than its factorization.

573664140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3301 (or 3293 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 573664140 is about 23951.2868130295. The cubic root of 573664140 is about 830.9072867671.

The spelling of 573664140 in words is "five hundred seventy-three million, six hundred sixty-four thousand, one hundred forty".