73000218 has 8 divisors (see below), whose sum is σ = 146000448. Its totient is φ = 24333404.

The previous prime is 73000217. The next prime is 73000237. The reversal of 73000218 is 81200037.

It is a sphenic number, since it is the product of 3 distinct primes.

73000218 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 73000194 and 73000203.

It is not an unprimeable number, because it can be changed into a prime (73000211) 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 3 ways as a sum of consecutive naturals, for example, 6083346 + ... + 6083357.

It is an arithmetic number, because the mean of its divisors is an integer number (18250056).

Almost surely, 2^73000218 is an apocalyptic number.

73000218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

73000218 is a wasteful number, since it uses less digits than its factorization.

73000218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12166708.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 73000218 is about 8544.0165027931. The cubic root of 73000218 is about 417.9343356633.

The spelling of 73000218 in words is "seventy-three million, two hundred eighteen", and thus it is an aban number.