73234320 has 40 divisors (see below), whose sum is σ = 227027136. Its totient is φ = 19529088.

The previous prime is 73234297. The next prime is 73234327. The reversal of 73234320 is 2343237.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×73234320³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (73234327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152332 + ... + 152811.

Almost surely, 2^73234320 is an apocalyptic number.

It is an amenable number.

73234320 is an abundant number, since it is smaller than the sum of its proper divisors (153792816).

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

73234320 is a wasteful number, since it uses less digits than its factorization.

73234320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305159 (or 305153 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 73234320 is about 8557.7052999037. The cubic root of 73234320 is about 418.3806122481.

Adding to 73234320 its reverse (2343237), we get a palindrome (75577557).

The spelling of 73234320 in words is "seventy-three million, two hundred thirty-four thousand, three hundred twenty".