73000560 has 40 divisors (see below), whose sum is σ = 226302480. Its totient is φ = 19466752.

The previous prime is 73000553. The next prime is 73000561. The reversal of 73000560 is 6500037.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73000561) 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 7 ways as a sum of consecutive naturals, for example, 151845 + ... + 152324.

It is an arithmetic number, because the mean of its divisors is an integer number (5657562).

Almost surely, 2^73000560 is an apocalyptic number.

It is an amenable number.

73000560 is an abundant number, since it is smaller than the sum of its proper divisors (153301920).

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

73000560 is a wasteful number, since it uses less digits than its factorization.

73000560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304185 (or 304179 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 73000560 is about 8544.0365167759. The cubic root of 73000560 is about 417.9349883249.

Adding to 73000560 its reverse (6500037), we get a palindrome (79500597).

The spelling of 73000560 in words is "seventy-three million, five hundred sixty", and thus it is an aban number.