73243296 has 144 divisors (see below), whose sum is σ = 243419904. Its totient is φ = 20454912.

The previous prime is 73243283. The next prime is 73243301. The reversal of 73243296 is 69234237.

It is a happy number.

73243296 is a `hidden beast` number, since 7 + 324 + 329 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 73243296.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94366 + ... + 95138.

It is an arithmetic number, because the mean of its divisors is an integer number (1690416).

Almost surely, 2^73243296 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 73243296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121709952).

73243296 is an abundant number, since it is smaller than the sum of its proper divisors (170176608).

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

73243296 is a wasteful number, since it uses less digits than its factorization.

73243296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 832 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 73243296 is about 8558.2297234884. The cubic root of 73243296 is about 418.3977045574.

The spelling of 73243296 in words is "seventy-three million, two hundred forty-three thousand, two hundred ninety-six".