It is an Ulam number.
It is an unprimeable number.
72474 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
272474 is an apocalyptic number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72474 is a wasteful number, since it uses less digits than its factorization.
72474 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 309.
The square root of 72474 is about 269.2099552394. The cubic root of 72474 is about 41.6927694219.
The spelling of 72474 in words is "seventy-two thousand, four hundred seventy-four", and thus it is an iban number.