73428580 has 24 divisors (see below), whose sum is σ = 159518520. Its totient is φ = 28358400.

The previous prime is 73428577. The next prime is 73428601. The reversal of 73428580 is 8582437.

It can be written as a sum of positive squares in 4 ways, for example, as 27541504 + 45887076 = 5248^2 + 6774^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 62721 + ... + 63880.

It is an arithmetic number, because the mean of its divisors is an integer number (6646605).

Almost surely, 2^73428580 is an apocalyptic number.

It is an amenable number.

73428580 is an abundant number, since it is smaller than the sum of its proper divisors (86089940).

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

73428580 is a wasteful number, since it uses less digits than its factorization.

73428580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126639 (or 126637 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 73428580 is about 8569.0477884068. The cubic root of 73428580 is about 418.7502151926.

The spelling of 73428580 in words is "seventy-three million, four hundred twenty-eight thousand, five hundred eighty".