73320424 has 8 divisors (see below), whose sum is σ = 137475810. Its totient is φ = 36660208.

The previous prime is 73320419. The next prime is 73320431. The reversal of 73320424 is 42402337.

It can be written as a sum of positive squares in only one way, i.e., 70257924 + 3062500 = 8382^2 + 1750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4582519 + ... + 4582534.

Almost surely, 2^73320424 is an apocalyptic number.

It is an amenable number.

73320424 is a deficient number, since it is larger than the sum of its proper divisors (64155386).

73320424 is a wasteful number, since it uses less digits than its factorization.

73320424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9165059 (or 9165055 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 73320424 is about 8562.7346099246. The cubic root of 73320424 is about 418.5445159804.

The spelling of 73320424 in words is "seventy-three million, three hundred twenty thousand, four hundred twenty-four".