73645080 has 64 divisors (see below), whose sum is σ = 230549760. Its totient is φ = 18784128.

The previous prime is 73645069. The next prime is 73645129. The reversal of 73645080 is 8054637.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10582 + ... + 16101.

It is an arithmetic number, because the mean of its divisors is an integer number (3602340).

Almost surely, 2^73645080 is an apocalyptic number.

It is an amenable number.

73645080 is an abundant number, since it is smaller than the sum of its proper divisors (156904680).

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

73645080 is a wasteful number, since it uses less digits than its factorization.

73645080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26720 (or 26716 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 73645080 is about 8581.6711659210. The cubic root of 73645080 is about 419.1613651193.

The spelling of 73645080 in words is "seventy-three million, six hundred forty-five thousand, eighty".