73126580 has 12 divisors (see below), whose sum is σ = 153565860. Its totient is φ = 29250624.

The previous prime is 73126577. The next prime is 73126589. The reversal of 73126580 is 8562137.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17355556 + 55771024 = 4166^2 + 7468^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73126589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1828145 + ... + 1828184.

It is an arithmetic number, because the mean of its divisors is an integer number (12797155).

Almost surely, 2^73126580 is an apocalyptic number.

It is an amenable number.

73126580 is an abundant number, since it is smaller than the sum of its proper divisors (80439280).

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

73126580 is a wasteful number, since it uses less digits than its factorization.

73126580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656338 (or 3656336 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 73126580 is about 8551.4080711892. The cubic root of 73126580 is about 418.1753421406.

The spelling of 73126580 in words is "seventy-three million, one hundred twenty-six thousand, five hundred eighty".