73218416 has 20 divisors (see below), whose sum is σ = 143806272. Its totient is φ = 36107136.

The previous prime is 73218391. The next prime is 73218427. The reversal of 73218416 is 61481237.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30176 + ... + 32511.

Almost surely, 2^73218416 is an apocalyptic number.

It is an amenable number.

73218416 is a deficient number, since it is larger than the sum of its proper divisors (70587856).

73218416 is a wasteful number, since it uses less digits than its factorization.

73218416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62768 (or 62762 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 73218416 is about 8556.7760283883. The cubic root of 73218416 is about 418.3503240490.

The spelling of 73218416 in words is "seventy-three million, two hundred eighteen thousand, four hundred sixteen".