73428772 has 12 divisors (see below), whose sum is σ = 130049136. Its totient is φ = 36271880.

The previous prime is 73428769. The next prime is 73428791. The reversal of 73428772 is 27782437.

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, 110254 + ... + 110917.

It is an arithmetic number, because the mean of its divisors is an integer number (10837428).

Almost surely, 2^73428772 is an apocalyptic number.

It is an amenable number.

73428772 is a deficient number, since it is larger than the sum of its proper divisors (56620364).

73428772 is a wasteful number, since it uses less digits than its factorization.

73428772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221258 (or 221256 counting only the distinct ones).

The product of its digits is 131712, while the sum is 40.

The square root of 73428772 is about 8569.0589915113. The cubic root of 73428772 is about 418.7505801730.

The spelling of 73428772 in words is "seventy-three million, four hundred twenty-eight thousand, seven hundred seventy-two".