73366720 has 84 divisors (see below), whose sum is σ = 203271120. Its totient is φ = 25148928.

The previous prime is 73366717. The next prime is 73366763. The reversal of 73366720 is 2766337.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13341 + ... + 18019.

Almost surely, 2^73366720 is an apocalyptic number.

73366720 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 73366720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101635560).

73366720 is an abundant number, since it is smaller than the sum of its proper divisors (129904400).

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

73366720 is a wasteful number, since it uses less digits than its factorization.

73366720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4710 (or 4693 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 34.

The square root of 73366720 is about 8565.4375253107. The cubic root of 73366720 is about 418.6325899393.

The spelling of 73366720 in words is "seventy-three million, three hundred sixty-six thousand, seven hundred twenty".