73936720 has 160 divisors (see below), whose sum is σ = 211486464. Its totient is φ = 23654400.

The previous prime is 73936699. The next prime is 73936729. The reversal of 73936720 is 2763937.

It is a self number, because there is not a number n which added to its sum of digits gives 73936720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73936729) 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 31 ways as a sum of consecutive naturals, for example, 262980 + ... + 263260.

Almost surely, 2^73936720 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 73936720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105743232).

73936720 is an abundant number, since it is smaller than the sum of its proper divisors (137549744).

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

73936720 is a wasteful number, since it uses less digits than its factorization.

73936720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 73936720 is about 8598.6464051035. The cubic root of 73936720 is about 419.7139397525.

The spelling of 73936720 in words is "seventy-three million, nine hundred thirty-six thousand, seven hundred twenty".