73446728 has 32 divisors (see below), whose sum is σ = 144158400. Its totient is φ = 35014848.

The previous prime is 73446713. The next prime is 73446773. The reversal of 73446728 is 82764437.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103238 + ... + 103946.

It is an arithmetic number, because the mean of its divisors is an integer number (4504950).

Almost surely, 2^73446728 is an apocalyptic number.

It is an amenable number.

73446728 is a deficient number, since it is larger than the sum of its proper divisors (70711672).

73446728 is a wasteful number, since it uses less digits than its factorization.

73446728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1297 counting only the distinct ones).

The product of its digits is 225792, while the sum is 41.

The square root of 73446728 is about 8570.1066504449. The cubic root of 73446728 is about 418.7847106298.

The spelling of 73446728 in words is "seventy-three million, four hundred forty-six thousand, seven hundred twenty-eight".