73568720 has 40 divisors (see below), whose sum is σ = 178488576. Its totient is φ = 28147328.

The previous prime is 73568713. The next prime is 73568723. The reversal of 73568720 is 2786537.

It is a happy number.

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 (73568723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18152 + ... + 21831.

Almost surely, 2^73568720 is an apocalyptic number.

It is an amenable number.

73568720 is an abundant number, since it is smaller than the sum of its proper divisors (104919856).

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

73568720 is a wasteful number, since it uses less digits than its factorization.

73568720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40019 (or 40013 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 73568720 is about 8577.2209951709. The cubic root of 73568720 is about 419.0164437814.

The spelling of 73568720 in words is "seventy-three million, five hundred sixty-eight thousand, seven hundred twenty".