73062720 has 168 divisors, whose sum is σ = 262469376. Its totient is φ = 18619392.

The previous prime is 73062683. The next prime is 73062721. The reversal of 73062720 is 2726037.

73062720 is a `hidden beast` number, since 7 + 30 + 627 + 2 + 0 = 666.

It is a super-2 number, since 2×73062720² = 10676322107596800, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73062721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65689 + ... + 66791.

Almost surely, 2^73062720 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 73062720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131234688).

73062720 is an abundant number, since it is smaller than the sum of its proper divisors (189406656).

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

73062720 is a wasteful number, since it uses less digits than its factorization.

73062720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 73062720 is about 8547.6733676481. The cubic root of 73062720 is about 418.0535785964.

Adding to 73062720 its reverse (2726037), we get a palindrome (75788757).

The spelling of 73062720 in words is "seventy-three million, sixty-two thousand, seven hundred twenty".