73245428 has 12 divisors (see below), whose sum is σ = 128295300. Its totient is φ = 36589632.

The previous prime is 73245427. The next prime is 73245439. The reversal of 73245428 is 82454237.

It can be written as a sum of positive squares in 2 ways, for example, as 30891364 + 42354064 = 5558^2 + 6508^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73245427) 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, 2903 + ... + 12446.

It is an arithmetic number, because the mean of its divisors is an integer number (10691275).

Almost surely, 2^73245428 is an apocalyptic number.

It is an amenable number.

73245428 is a deficient number, since it is larger than the sum of its proper divisors (55049872).

73245428 is a wasteful number, since it uses less digits than its factorization.

73245428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16546 (or 16544 counting only the distinct ones).

The product of its digits is 53760, while the sum is 35.

The square root of 73245428 is about 8558.3542810519. The cubic root of 73245428 is about 418.4017641565.

The spelling of 73245428 in words is "seventy-three million, two hundred forty-five thousand, four hundred twenty-eight".