73313320 has 16 divisors (see below), whose sum is σ = 164955060. Its totient is φ = 29325312.

The previous prime is 73313309. The next prime is 73313321. The reversal of 73313320 is 2331337.

It can be written as a sum of positive squares in 2 ways, for example, as 73307844 + 5476 = 8562^2 + 74^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73313291 and 73313300.

It is not an unprimeable number, because it can be changed into a prime (73313321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916377 + ... + 916456.

Almost surely, 2^73313320 is an apocalyptic number.

It is an amenable number.

73313320 is an abundant number, since it is smaller than the sum of its proper divisors (91641740).

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

73313320 is a wasteful number, since it uses less digits than its factorization.

73313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832844 (or 1832840 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 22.

The square root of 73313320 is about 8562.3197791253. The cubic root of 73313320 is about 418.5309979813.

Adding to 73313320 its reverse (2331337), we get a palindrome (75644657).

The spelling of 73313320 in words is "seventy-three million, three hundred thirteen thousand, three hundred twenty".