73680772 has 72 divisors (see below), whose sum is σ = 150151680. Its totient is φ = 31574400.

The previous prime is 73680767. The next prime is 73680773. The reversal of 73680772 is 27708637.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (73680773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 932629 + ... + 932707.

It is an arithmetic number, because the mean of its divisors is an integer number (2085440).

Almost surely, 2^73680772 is an apocalyptic number.

It is an amenable number.

73680772 is an abundant number, since it is smaller than the sum of its proper divisors (76470908).

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

73680772 is a wasteful number, since it uses less digits than its factorization.

73680772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 73680772 is about 8583.7504623562. The cubic root of 73680772 is about 419.2290695344.

The spelling of 73680772 in words is "seventy-three million, six hundred eighty thousand, seven hundred seventy-two".