73322340 has 144 divisors (see below), whose sum is σ = 254314368. Its totient is φ = 15455232.

The previous prime is 73322329. The next prime is 73322341. The reversal of 73322340 is 4322337.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 73322340.

It is not an unprimeable number, because it can be changed into a prime (73322341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70464 + ... + 71496.

It is an arithmetic number, because the mean of its divisors is an integer number (1766072).

Almost surely, 2^73322340 is an apocalyptic number.

73322340 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73322340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127157184).

73322340 is an abundant number, since it is smaller than the sum of its proper divisors (180992028).

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

73322340 is a wasteful number, since it uses less digits than its factorization.

73322340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1063 counting only the distinct ones).

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

The square root of 73322340 is about 8562.8464893399. The cubic root of 73322340 is about 418.5481617327.

Adding to 73322340 its reverse (4322337), we get a palindrome (77644677).

The spelling of 73322340 in words is "seventy-three million, three hundred twenty-two thousand, three hundred forty".