73030816 has 24 divisors (see below), whose sum is σ = 148739220. Its totient is φ = 35255808.

The previous prime is 73030807. The next prime is 73030831. The reversal of 73030816 is 61803037.

It can be written as a sum of positive squares in 2 ways, for example, as 67174416 + 5856400 = 8196^2 + 2420^2 .

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 3 ways as a sum of consecutive naturals, for example, 38421 + ... + 40276.

Almost surely, 2^73030816 is an apocalyptic number.

It is an amenable number.

73030816 is an abundant number, since it is smaller than the sum of its proper divisors (75708404).

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

73030816 is a wasteful number, since it uses less digits than its factorization.

73030816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78736 (or 78728 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 73030816 is about 8545.8069250364. The cubic root of 73030816 is about 417.9927198201.

The spelling of 73030816 in words is "seventy-three million, thirty thousand, eight hundred sixteen".