73236340 has 48 divisors (see below), whose sum is σ = 166344192. Its totient is φ = 26978816.

The previous prime is 73236299. The next prime is 73236349. The reversal of 73236340 is 4363237.

It is a super-2 number, since 2×73236340² = 10727122993191200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73236299 and 73236308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73236349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13689 + ... + 18271.

It is an arithmetic number, because the mean of its divisors is an integer number (3465504).

Almost surely, 2^73236340 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 73236340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83172096).

73236340 is an abundant number, since it is smaller than the sum of its proper divisors (93107852).

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

73236340 is a wasteful number, since it uses less digits than its factorization.

73236340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4656 (or 4654 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 73236340 is about 8557.8233213826. The cubic root of 73236340 is about 418.3844589011.

Adding to 73236340 its reverse (4363237), we get a palindrome (77599577).

The spelling of 73236340 in words is "seventy-three million, two hundred thirty-six thousand, three hundred forty".