73073660 has 48 divisors (see below), whose sum is σ = 168370272. Its totient is φ = 26419200.

The previous prime is 73073653. The next prime is 73073699. The reversal of 73073660 is 6637037.

It is a happy number.

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, 41600 + ... + 43320.

It is an arithmetic number, because the mean of its divisors is an integer number (3507714).

Almost surely, 2^73073660 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 73073660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84185136).

73073660 is an abundant number, since it is smaller than the sum of its proper divisors (95296612).

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

73073660 is a wasteful number, since it uses less digits than its factorization.

73073660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1932 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 32.

The square root of 73073660 is about 8548.3132839175. The cubic root of 73073660 is about 418.0744432175.

The spelling of 73073660 in words is "seventy-three million, seventy-three thousand, six hundred sixty".